/*------------------------------------------
ICONDEMO.C -- Icon Demonstration Program
(c) Charles Petzold, 1998
------------------------------------------*/#include <windows.h>
#include "resource.h"LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
HINSTANCE hInst;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
TCHAR szAppName[] = TEXT ("IconDemo") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ; wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (hInstance, MAKEINTRESOURCE (IDI_ICON1)) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH)GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ; if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("Icon Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
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)
{
static HICON hIcon ;
static int cxIcon, cyIcon, cxClient, cyClient ;
HDC hdc ;
PAINTSTRUCT ps ;
LPSTR p;
HGLOBAL hc;
switch (message)
{
case WM_CREATE :
hInst = ((LPCREATESTRUCT) lParam)->hInstance ;
return 0 ;
case WM_LBUTTONDOWN:
hdc = GetDC(hwnd); hc = LoadResource(hInst,
FindResource(hInst,MAKEINTRESOURCE(IDR_TEXTXT1),TEXT("TEXTXT1")));
if (hc == NULL)
{
MessageBox(NULL, "初始化失败", "资源", MB_ICONERROR);
return 0;
}
p = (char *)LockResource(hc);
TextOut(hdc, 10, 10, p, strlen(p));
ReleaseDC(hwnd, hdc);
return 0;
case WM_SIZE :
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ;
case WM_PAINT :
hdc = BeginPaint (hwnd, &ps) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY :
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}也不知道为什么上面我这个程序走到WM_LBUTTONDOWN消息中的if判断语句hc老是为NULL,我自己感觉我自定义的资源没有出错啊。。下面是我的资源给大家看看。。下面是图标的:下面是自定义资源的:
这里写错了 FindResource(hInst,MAKEINTRESOURCE(IDR_TEXTXT1),TEXT("TEXTXT"))); 这样就行了..