/*------------------------------------------------------------
HELLOWIN.C -- Displays "Hello, Windows 98!" in client area
(c) Charles Petzold, 1998
------------------------------------------------------------*/#include <windows.h>LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("HelloWin") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ; wndclass.style = CS_HREDRAW | CS_VREDRAW ; // 垂直和水平方向 调整窗口时,重绘
wndclass.lpfnWndProc = WndProc ; // WNDCLASS结构中第二个字段 是 重要参数之一:基于该类的所有窗口的窗口过程(WndProc)的地址
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ; // 下面是设置客户区背景色: 注意强制转换为HBRUSH // WHITE_BRUSH ,如果要把背景色改为红色,RED_BRUSH? 结果不对...怎么改? wndclass.hbrBackground = (HBRUSH) GetStockObject (DKGRAY_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ; // WNDCLASS结构中最后一个字段 是重要字段之二: 窗口类的名称 if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, // window class name
TEXT ("The Hello Program"), // window caption
WS_OVERLAPPEDWINDOW, // window style
CW_USEDEFAULT, // initial x position
CW_USEDEFAULT, // initial y position
CW_USEDEFAULT, // initial x size
CW_USEDEFAULT, // initial y size
NULL, // parent window handle
NULL, // window menu handle
hInstance, // program instance handle
NULL) ; // creation parameters
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc ;
PAINTSTRUCT ps ;
RECT rect ;
switch (message)
{
case WM_CREATE:
// PlaySound (TEXT ("hellowin.wav"), NULL, SND_FILENAME | SND_ASYNC) ;
return 0 ; case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
GetClientRect (hwnd, &rect) ;
DrawText (hdc, TEXT ("----Hello, Windows 98! ----"), -1, &rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
// 下面是设置客户区背景色: 注意强制转换为HBRUSH // WHITE_BRUSH ,如果要把背景色改为红色,RED_BRUSH? 结果不对...怎么改? wndclass.hbrBackground = (HBRUSH) GetStockObject (DKGRAY_BRUSH) ;
MSDN查看了下 GetStockObjectHGDIOBJ GetStockObject(
int fnObject // stock object type
);不是太清楚怎么用,好像用SetDCBrushColor?
wndclass.hbrBackground = hRedBrush/* (HBRUSH) GetStockObject (DKGRAY_BRUSH)*/ ;
在case WM_PAINT:原有基础上增加一段HBRUSH hRedBrush = CreateSolidBrush(RGB(255, 0, 0));
SelectObject(hdc,hRedBrush);
然后用PatBlt再画一层红色
试下了没有 没有搞出来, 能解释下 " 然后用PatBlt再画一层红色" ?