From c436af69bb7297228de634800bb1e88053dc6ef7 Mon Sep 17 00:00:00 2001 From: Vincent Wei Date: Sun, 13 Jan 2019 14:22:54 +0800 Subject: [PATCH 1/8] fixbug: No need to make the pitch of FT2 monobitmap is single-byte aligned --- src/font/freetype2.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/src/font/freetype2.c b/src/font/freetype2.c index 3231b710..061f5094 100644 --- a/src/font/freetype2.c +++ b/src/font/freetype2.c @@ -451,6 +451,7 @@ get_glyph_bbox (LOGFONT* logfont, DEVFONT* devfont, return (int)(bbox.xMax - bbox.xMin); } +#if 0 // VincentWei: bad implementation /* press double-byte align to byte align.*/ static void press_bitmap (void* buffer, int width, int rows, int pitch) @@ -472,7 +473,7 @@ press_bitmap (void* buffer, int width, int rows, int pitch) dest_pos += dest_pitch; } } - +#endif /* call this function to get the bitmap/pixmap of the char */ static const void* @@ -547,11 +548,15 @@ char_bitmap_pixmap (LOGFONT* logfont, DEVFONT* devfont, if (pitch) *pitch = source->pitch; +#if 0 // VincentWei: bad implementation if (!is_grey) { press_bitmap(source->buffer, source->width, source->rows, source->pitch); *pitch = (source->width + 7) >> 3; } +#else + *pitch = (source->width + 7) >> 3; +#endif #ifdef _MGFONT_TTF_CACHE if (ft_inst_info->cache && (ft_inst_info->rotation == 0)) { From e6bb4fa05f4f153cecea36117275d5ac0f090241 Mon Sep 17 00:00:00 2001 From: Vincent Wei Date: Sun, 13 Jan 2019 14:24:14 +0800 Subject: [PATCH 2/8] tune RELEASE NOTES --- RELEASE-NOTES.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md index f989ba67..c779c329 100644 --- a/RELEASE-NOTES.md +++ b/RELEASE-NOTES.md @@ -43,6 +43,8 @@ Please report any bugs and incompatibilities in * BUGFIXING: 1. handle `PNG_COLOR_TYPE_GRAY_ALPHA` color type of PNG files. 1. Fix a bug to free a null pointer (ReleaseDC). + 1. No need to make the pitch of FT2 monobitmap is single-byte aligned. + This bug may generate dirty dots for monobitmap glyph from TTF. * TUNNING: 1. Tune GLYPHINFO structure and GetGlyphInfo to return BIDI glyph type. From 715a44beeb28a480457da510514032f724089e0b Mon Sep 17 00:00:00 2001 From: Vincent Wei Date: Sun, 13 Jan 2019 14:32:49 +0800 Subject: [PATCH 3/8] typo for pitch --- src/font/freetype2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/font/freetype2.c b/src/font/freetype2.c index 061f5094..067acff0 100644 --- a/src/font/freetype2.c +++ b/src/font/freetype2.c @@ -555,7 +555,7 @@ char_bitmap_pixmap (LOGFONT* logfont, DEVFONT* devfont, *pitch = (source->width + 7) >> 3; } #else - *pitch = (source->width + 7) >> 3; + *pitch = source->pitch; #endif #ifdef _MGFONT_TTF_CACHE From b4569adbd5d385201b0c14dd4e119a852330e9cf Mon Sep 17 00:00:00 2001 From: Vincent Wei Date: Sun, 13 Jan 2019 16:22:34 +0800 Subject: [PATCH 4/8] skipp null pixels for subpixel glyph --- src/newgdi/glyph.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/newgdi/glyph.c b/src/newgdi/glyph.c index 3aca4afb..382ecc12 100644 --- a/src/newgdi/glyph.c +++ b/src/newgdi/glyph.c @@ -2927,6 +2927,13 @@ static void _dc_ft2subpixel_scan_line(PDC pdc, int xpos, int ypos, bits += 3; continue; } + + // VincentWei: skip null pixel + if (bits[0] == 0 && bits[1] == 0 && bits[2] == 0) { + bits += 3; + continue; + } + _glyph_move_to_pixel (pdc, x+xpos, ypos); pixel = _mem_get_pixel(pdc->cur_dst, GAL_BytesPerPixel (pdc->surface)); From c975fe5b8d6b89baf2a1616bef9d8645d0e0739f Mon Sep 17 00:00:00 2001 From: Vincent Wei Date: Sun, 13 Jan 2019 16:23:57 +0800 Subject: [PATCH 5/8] tune release notes --- RELEASE-NOTES.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md index c779c329..82491f06 100644 --- a/RELEASE-NOTES.md +++ b/RELEASE-NOTES.md @@ -45,6 +45,8 @@ Please report any bugs and incompatibilities in 1. Fix a bug to free a null pointer (ReleaseDC). 1. No need to make the pitch of FT2 monobitmap is single-byte aligned. This bug may generate dirty dots for monobitmap glyph from TTF. + 1. Skip null pixels for SUBPIXEL glyphs. This bug will always show background + pixels of one SUBPIXEL glyph. * TUNNING: 1. Tune GLYPHINFO structure and GetGlyphInfo to return BIDI glyph type. From 16287af2a6d8dc0a1142e3ff74f66497fe71cd54 Mon Sep 17 00:00:00 2001 From: Vincent Wei Date: Tue, 15 Jan 2019 14:53:57 +0800 Subject: [PATCH 6/8] fix the bug of wrong bbox handling for SUBPIXEL rendering of glyph --- RELEASE-NOTES.md | 1 + src/font/freetype2.c | 8 ++++---- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md index 82491f06..39794d37 100644 --- a/RELEASE-NOTES.md +++ b/RELEASE-NOTES.md @@ -47,6 +47,7 @@ Please report any bugs and incompatibilities in This bug may generate dirty dots for monobitmap glyph from TTF. 1. Skip null pixels for SUBPIXEL glyphs. This bug will always show background pixels of one SUBPIXEL glyph. + 1. Fix the bug of wrong bounding box handling for SUBPIXEL rendering of glyph. * TUNNING: 1. Tune GLYPHINFO structure and GetGlyphInfo to return BIDI glyph type. diff --git a/src/font/freetype2.c b/src/font/freetype2.c index 067acff0..2bad2a5b 100644 --- a/src/font/freetype2.c +++ b/src/font/freetype2.c @@ -397,11 +397,11 @@ get_glyph_bbox (LOGFONT* logfont, DEVFONT* devfont, FT_Glyph_Get_CBox (ft_inst_info->glyph, ft_glyph_bbox_pixels, &bbox); -#if 1 //Note: using subpixel filter, the bbox_w is 2 pixel wider than normal. - if (IS_SUBPIXEL(logfont) && (ft_inst_info->ft_lcdfilter != FT_LCD_FILTER_NONE)) - bbox.xMax += 2; -#endif + if (IS_SUBPIXEL(logfont) && (ft_inst_info->ft_lcdfilter != FT_LCD_FILTER_NONE)) { + bbox.xMin -= 1; + bbox.xMax += 1; + } /* We just save the BBOX :). */ memcpy (&ft_inst_info->bbox, &bbox, sizeof(FT_BBox)); From 1ed5b44926022efee3eb0482c7098ce4602ff6b2 Mon Sep 17 00:00:00 2001 From: Vincent Wei Date: Tue, 15 Jan 2019 15:13:50 +0800 Subject: [PATCH 7/8] cleanup for 3.2.2 --- RELEASE-NOTES.md | 4 ++-- configure.ac | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md index 39794d37..007c8f93 100644 --- a/RELEASE-NOTES.md +++ b/RELEASE-NOTES.md @@ -1,8 +1,8 @@ # Release Notes -## Version 3.2.1 +## Version 3.2.2 -The MiniGUI development team announces the availability of MiniGUI 3.2.1. +The MiniGUI development team announces the availability of MiniGUI 3.2.2. All users of MiniGUI are recommended strongly to use this version. Please report any bugs and incompatibilities in diff --git a/configure.ac b/configure.ac index 73b7687a..00489796 100644 --- a/configure.ac +++ b/configure.ac @@ -1,6 +1,6 @@ dnl Process this file with autoconf to produce a configure script. AC_PREREQ(2.60) -AC_INIT(libminigui, 3.2.0) +AC_INIT(libminigui, 3.2.2) AC_CONFIG_SRCDIR(src/main/main.c) dnl Set various version strings - taken gratefully from the SDL sources @@ -16,7 +16,7 @@ dnl Set various version strings - taken gratefully from the SDL sources # MINIGUI_MAJOR_VERSION=3 MINIGUI_MINOR_VERSION=2 -MINIGUI_MICRO_VERSION=1 +MINIGUI_MICRO_VERSION=2 MINIGUI_INTERFACE_AGE=0 MINIGUI_BINARY_AGE=1 MINIGUI_VERSION=$MINIGUI_MAJOR_VERSION.$MINIGUI_MINOR_VERSION.$MINIGUI_MICRO_VERSION From 747894247b4621b9233984937a8abf3eb501471e Mon Sep 17 00:00:00 2001 From: Vincent Wei Date: Tue, 15 Jan 2019 16:18:45 +0800 Subject: [PATCH 8/8] tune release notes --- RELEASE-NOTES.md | 116 +++++++++++++++++++++++------------------------ 1 file changed, 58 insertions(+), 58 deletions(-) diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md index 007c8f93..308c3bb6 100644 --- a/RELEASE-NOTES.md +++ b/RELEASE-NOTES.md @@ -6,19 +6,19 @@ The MiniGUI development team announces the availability of MiniGUI 3.2.2. All users of MiniGUI are recommended strongly to use this version. Please report any bugs and incompatibilities in - https://github.com/VincentWei/minigui. + https://github.com/VincentWei/minigui ### What's new in this version * ENHANCEMENTS: - 1. Add a new key `dpi` for NEWGAL engine to define the DPI of the screen. + 1. Add a new key `dpi` for NEWGAL engine to define the DPI of the screen. If it is absent, use 96 as the default DPI. 1. Add an item for `GetGDCapability` to return DPI of the DC. - 1. New API `InitSlaveScreenEx` to specify the DPI of slave screen. + 1. New API `InitSlaveScreenEx` to specify the DPI of slave screen. Define `InitSlaveScreen` as an inline function calling `InitSlaveScreenEx`. - 1. New API: `SyncUpdateDC`. You can use this function to synchronize + 1. New API: `SyncUpdateDC`. You can use this function to synchronize the update rectangles of a surface to screen, if the surface - represents the shadow frame buffer of the screen. + represents the shadow frame buffer of the screen. * configure option: `--enable-syncupdate` * macro: `_MGUSE_SYNC_UPDATE` 1. New API: `UpdateInvalidClient`. You can use this function to update @@ -43,9 +43,9 @@ Please report any bugs and incompatibilities in * BUGFIXING: 1. handle `PNG_COLOR_TYPE_GRAY_ALPHA` color type of PNG files. 1. Fix a bug to free a null pointer (ReleaseDC). - 1. No need to make the pitch of FT2 monobitmap is single-byte aligned. + 1. No need to make the pitch of FT2 monobitmap is single-byte aligned. This bug may generate dirty dots for monobitmap glyph from TTF. - 1. Skip null pixels for SUBPIXEL glyphs. This bug will always show background + 1. Skip null pixels for SUBPIXEL glyphs. This bug will always show background pixels of one SUBPIXEL glyph. 1. Fix the bug of wrong bounding box handling for SUBPIXEL rendering of glyph. @@ -58,12 +58,12 @@ The MiniGUI development team announces the availability of MiniGUI 3.2.0. All users of MiniGUI are recommended strongly to use this version for new MiniGUI apps. Please report any bugs and incompatibilities in - https://github.com/VincentWei/minigui. + https://github.com/VincentWei/minigui ### What's new in this version - * Support for 64-bit platform. Note that the definitions of some types - and APIs changed. + * Support for 64-bit platform. Note that the definitions of some types + and APIs changed. * Compliant to the latest GCC, and eliminate all compilation warnings. ### Type changes @@ -71,37 +71,37 @@ MiniGUI apps. Please report any bugs and incompatibilities in #### Changes of handle types All handle types, including `GHANDLE`, `HWND`, `HDC`, etc., -are now defined as aliases of `PVOID` (`typedef void* PVOID`). -You may need to check your code to reflect this change. +are now defined as aliases of `PVOID` (`typedef void* PVOID`). +You may need to check your code to reflect this change. #### Changes of integer types. The type of `DWORD` now has pointer precision. That is, -the size of `DWORD` will be 4 bytes on 32-bit platform, and 8 bytes on -64-bit platform. +the size of `DWORD` will be 4 bytes on 32-bit platform, and 8 bytes on +64-bit platform. Similarly, `WPARAM` and `LPARAM` now have pointer precision. -`WORD` and `SWORD` has a half of pointer precision. The size of these +`WORD` and `SWORD` has a half of pointer precision. The size of these two types is 2 bytes on 32-bit platform, and 4 bytes on 64-bit platform. `RGBCOLOR` now is defined as an alias of `DWORD32` (see below). -Note that the type of `BYTE` always has the size of 8-bit on both +Note that the type of `BYTE` always has the size of 8-bit on both 32-bit and 64-bit platforms. #### New integer types: -We introduce `DWORD32` and `SDWORD32` types, -which have the size of 4 bytes on both 32-bit and 64-bit platforms. -You should use these types when reading/writing 32-bit integers from -a binary files for the portability. Of course, you can also use +We introduce `DWORD32` and `SDWORD32` types, +which have the size of 4 bytes on both 32-bit and 64-bit platforms. +You should use these types when reading/writing 32-bit integers from +a binary files for the portability. Of course, you can also use `Uint32` or `Sint32` types. Similarly, we introduce `WORD16` and `SWORD16` types, -which have the size of 2 bytes on both 32-bit and 64-bit platforms. -You should use these types when reading/writing 16-bit integers from -a binary file for the portability. Of course, you can also use +which have the size of 2 bytes on both 32-bit and 64-bit platforms. +You should use these types when reading/writing 16-bit integers from +a binary file for the portability. Of course, you can also use `Uint16` or `SUint16` types. `LRESULT` is defined for window callback procedure, and it has @@ -114,7 +114,7 @@ pointer precision. #### Integer macros `MAKEWPARAM`: this new macro makes a WPARAM value by using four bytes. -On the contrary, `FIRSTBYTE`, `SECONDBYTE`, `THIRDBYTE`, and `FOURTH` +On the contrary, `FIRSTBYTE`, `SECONDBYTE`, `THIRDBYTE`, and `FOURTH` macros get the four bytes from a `WPARAM` or a `Uint32` value. `MAKEWORD16`: this new macro makes a 16-bit word by using two bytes. @@ -124,12 +124,12 @@ word on 64-bit platform. Note that `MAKELONG` macro always makes a `DWORD` integer, which has pointer precision. Meanwhile, `MAKELONG32` macro makes a `Uint32` integer. -Note that `MakeRGB` and `MakeRGBA` macros always make `DWORD32` integers. -In contract, `GetRValue`, `GetRValue`, `GetBValue`, `GetAValue` always -get red, green, blue, and alpha components from a `DWORD32` integer +Note that `MakeRGB` and `MakeRGBA` macros always make `DWORD32` integers. +In contract, `GetRValue`, `GetRValue`, `GetBValue`, `GetAValue` always +get red, green, blue, and alpha components from a `DWORD32` integer respectively. -Note that you should use `(-1)` instead of `0xFFFFFFFF` for the invalid +Note that you should use `(-1)` instead of `0xFFFFFFFF` for the invalid integer or pointer type value for good portability. #### Structure and functions @@ -143,16 +143,16 @@ The main changes in structure and functions: * We now use a `LRESULT` integer for the return value of a window callback procedure. Now it is safe to return a pointer from the callback procedure - on 64-bit platform. This is a very important change, and it will break the + on 64-bit platform. This is a very important change, and it will break the source compatibilty of your code. You should check the source code (use gcc option `-Wall`) carefully. * We now use a `LINT` integer for the identifier of a timer. So you can pass - a pointer as the identifier of the timer on 64-bit platform. mGNCS uses + a pointer as the identifier of the timer on 64-bit platform. mGNCS uses MiniGUI timer in this manner. * We now use a `LINT` integer for the identifier of a control/widget and a - menu item. So you can pass a pointer as the identifier of the timer on + menu item. So you can pass a pointer as the identifier of the timer on 64-bit platform. mGNCS works in this manner. ##### Message @@ -161,7 +161,7 @@ The strcuture `MSG` and all message-related functions changed. For example, the prototype of `SendMessage` changed from int SendMessage (HWND hWnd, int nMsg, WPARAM wParam, LPARAM lParam) - + to LRESULT SendMessage (HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam) @@ -169,7 +169,7 @@ to _IMPORTANT NOTE_ For best portability, you should use `FIRSTBYTE` to `FOURTHBYTE` macros -to get the bytes of a character when you extract the bytes from `WPARAM` +to get the bytes of a character when you extract the bytes from `WPARAM` parameter of a `MSG_CHAR` message: MSG_CHAR @@ -179,10 +179,10 @@ parameter of a `MSG_CHAR` message: unsigned char ch_buff [2] = THIRDBYTE(wParam); unsigned char ch_buff [3] = FOURTHBYTE(wParam); -##### Window callback procedure +##### Window callback procedure -Furthermore, the structure and functions to register window class, -create main window, and create dialog box changed. For example, the prototype +Furthermore, the structure and functions to register window class, +create main window, and create dialog box changed. For example, the prototype of `WNDPROC` changed from typedef int (* WNDPROC)(HWND, int, WPARAM, LPARAM) @@ -221,8 +221,8 @@ to _IMPORTANT NOTE_ If you use `MSG_COMMAND` message to handle the notification sent from children -controls, you should make sure the identifier is small enough on 64-bit -platform. Because MiniGUI packs the identifier and the notification code +controls, you should make sure the identifier is small enough on 64-bit +platform. Because MiniGUI packs the identifier and the notification code in the `WPARAM` parameter: MSG_COMMAND @@ -233,8 +233,8 @@ in the `WPARAM` parameter: The code above will not work on 64-bit if you use a pointer as the identifier of the control. -Therefore, we recommend strongly that you use a `NOTIFYPOROC` callback to -handle the notification sent from controls. To do this, please call +Therefore, we recommend strongly that you use a `NOTIFYPOROC` callback to +handle the notification sent from controls. To do this, please call `SetNotificationCallback` function to set the notification callback function. ##### Time and timer @@ -260,10 +260,10 @@ to In addition, we correct the bad or wrong definitions of some APIs: * `DWORD2PIXEL` to `DWORD2Pixel`. The old one has a bad name. - * `GetWindowRendererFromName`: The return type changes from + * `GetWindowRendererFromName`: The return type changes from `const WINDOW_ELEMENT_RENDERER*` to `WINDOW_ELEMENT_RENDERER*`. So you can overload some methods directly of a renderer. - * `GetDefaultWindowElementRenderer`: The return type changes from + * `GetDefaultWindowElementRenderer`: The return type changes from `const WINDOW_ELEMENT_RENDERER*` to `WINDOW_ELEMENT_RENDERER*`. So you can overload some methods directly of the default renderer. @@ -277,15 +277,15 @@ We add some new options for autoconf script (`configure`): * `--enable-develmode`: You should use this option to define `_DEBUG` macro, enable `-Wall -Werror` option, and enable all features of MiniGUI, - if you were a MiniGUI developer. + if you were a MiniGUI developer. ## Version 3.0.13 The MiniGUI development team announces the availability of MiniGUI 3.0.13. -All users of MiniGUI are encouraged to test this version carefully, and +All users of MiniGUI are encouraged to test this version carefully, and report any bugs and incompatibilities in - https://github.com/VincentWei/minigui. + https://github.com/VincentWei/minigui. ### What's new in this version @@ -293,7 +293,7 @@ report any bugs and incompatibilities in * The autoconf/automake config scripts are cleaned up. * Remove most of compilation warnings (not used variables). * Remove some inline function definitions, especially GetIMEPos/SetIMEPos. - * Fix some bugs. + * Fix some bugs. ### API changes @@ -302,12 +302,12 @@ report any bugs and incompatibilities in * [NEW] ToUnicode/ToAscii: Converts the key code between Unicode and ASCII. * [NEW] GetWindowRegion: The function obtains a copy of the window region of a window. * [NEW] InvalidateRegion: Invalidates the client area within the specified region. - * [NEW] ValidateRect: Validates the client area within a rectangle by removing the + * [NEW] ValidateRect: Validates the client area within a rectangle by removing the rectangle from the update region of the specified window. - * [NEW] ValidateRegion: Validates the client area within a region by removing the + * [NEW] ValidateRegion: Validates the client area within a region by removing the region from the current update region of the specified window. * [NEW] GetUpdateRegion: Copy the update region of a window to a region. - * [NEW] AdjustWindowRectEx: Calculates the required size of the window rectangle + * [NEW] AdjustWindowRectEx: Calculates the required size of the window rectangle based on the desired size of the client rectangle. * [NEW] WindowFromPointEx: Retrieves a handle to the window that contains the specified point. * [NEW] ChildWindowFromPointEx: Retrieves a handle to the child window that contains the @@ -317,15 +317,15 @@ report any bugs and incompatibilities in * [ADJUST] WindowFromPoint: normal function -> inline function. * [ADJUST] ChildWindowFromPoint: normal function -> inline function. * [ADJUST] ScrollWindow: normal function -> inline function. - - + + ## Version 3.0.2 The MiniGUI development team announces the availability of MiniGUI 3.0.2. -All users of MiniGUI are encouraged to test this version carefully, and +All users of MiniGUI are encouraged to test this version carefully, and report any bugs and incompatibilities in - https://github.com/VincentWei/minigui. + https://github.com/VincentWei/minigui. ### What's new in this version @@ -334,20 +334,20 @@ report any bugs and incompatibilities in * Support for Look and Feel (LF) concept. * Remove SKIN interfaces of MGExt library, move MGExt library and vcongui into mGUtils component. * Newly added bitmap font. - * Developing interfaces of desktop for MiniGUI. + * Developing interfaces of desktop for MiniGUI. * Support direct draw to DC for higher efficiency. * Enhancement of resource management * Enhancement of controls: Support of independent scrollbar and transparent control. * Enhancement of font and character set, support bidi text support. * Enhancement of zoom of picture - + ### API changes * [NEW] ScaleBitmapEx: a bilinear interpolation algorithm which is better than the original. * [NEW] GetWindowInfo: get New structure WINDOWINFO. * [NEW] CreateMainWindowEx: enhance of CreeateMainWindow, compatiable with CreeateMainWindow. - * [NEW] CreateWindowEx2：enhance of CreateWindowEx2, compatiable with CreateWindowEx2. + * [NEW] CreateWindowEx2：enhance of CreateWindowEx2, compatiable with CreateWindowEx2. * [NEW] DialogBoxIndirectParamEx: new create dialog. * [NEW] CreateMainWindowIndirectParamEx:new create dialog. * [NEW] GetWindowRendererFromName: get LF renderer by name @@ -361,7 +361,7 @@ report any bugs and incompatibilities in * [NEW] CreateBMPDevFont: create an bitmap device font. * [NEW] AddGlyphsToBMPFont: add an bitmap font glyph. * [NEW] DestroyBMPFont: destroy bitmap device font. - * [NEW] SetCustomDesktopOperationSet: set the custom desktop operation set. + * [NEW] SetCustomDesktopOperationSet: set the custom desktop operation set. * [NEW] DesktopUpdateAllWindow: refresh all windows on the desktop. * [NEW] PopupDesktopMenu: pop up a menu on the desktop * [NEW] GetTextAlign: get the current text-alignment flags of a DC. @@ -369,5 +369,5 @@ report any bugs and incompatibilities in * [NEW] SetWindowMask: set non-rectangle window mask rect. * [NEW] SetWindowRegion: set non-rectangle window visible region * [NEW] LockDCEx: support for directly read and write the pixels in a DC. - * [NEW] CreateSecondaryDC: Creates a secondary window DC of a window. + * [NEW] CreateSecondaryDC: Creates a secondary window DC of a window. * [NEW] SetSecondaryDC:set a window's secondary DC and the callback for double buffer window.