c++ - Win32 工具栏和 24 位图像

Question

WinAPI 是否支持 24 位以上的图像？我想使用 24 位图标(更多定义)作为工具栏按钮图像。我已经加载了这样的图标:

// create toolbar
HWND hTool = CreateWindowEx( 0, TOOLBARCLASSNAME, NULL, WS_CHILD | WS_VISIBLE, 0, 0, 0, 0,
                        m_hWnd[ AUXILIARY_VIEWPORT ], ( HMENU )IDC_TEX_TOOL, GetModuleHandle( NULL ), NULL );

// Send the TB_BUTTONSTRUCTSIZE message, which is required for backward compatibility.
SendMessage( hTool, TB_BUTTONSTRUCTSIZE, ( WPARAM )sizeof( TBBUTTON ), 0 );
SendMessage( hTool, TB_SETBUTTONSIZE, 0, MAKELPARAM( 32, 32 ) );
SendMessage( hTool, TB_SETBITMAPSIZE, 0, MAKELPARAM( 32, 32 ) );

// declare button and bitmap structs
TBBUTTON tbb[ 19 ];
TBADDBITMAP tbab;

HICON hIcon = ( HICON )LoadIcon( GetModuleHandle( NULL ), MAKEINTRESOURCE( IDI_GRADIENT ) );

// create and add imagelist

HIMAGELIST hImgList = ImageList_Create( 32, 32, ILC_MASK, 1, 1 );
int nR = ImageList_AddIcon( hImgList, hIcon );
SendMessage( hTool, TB_SETIMAGELIST, 0, ( LPARAM )hImgList);

ZeroMemory( tbb, sizeof( tbb ) );
tbb[ 0 ].iBitmap = 0;
tbb[ 0 ].fsState = TBSTATE_ENABLED;
tbb[ 0 ].fsStyle = BTNS_CHECK;
tbb[ 0 ].idCommand = IDM_EDITTEXTURE_ENABLE;
    ...
SendMessage( hTool, TB_ADDBUTTONS, SIZEARRAY( tbb ), ( LPARAM )&tbb );

加载时图像似乎被转换为 16 位...如何在按钮上使用高分辨率图像？

Answer 1

查看 here获得全功能的 24 位颜色工具栏。它还包含一个演示解决方案。

主要思想是使用:

static const UINT   kToolBarBitDepth (ILC_COLOR24);