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#include <stdio.h>
#include <windows.h>
void Write (HDC dc, int x, int y, char *s)
{
TextOut (dc, x, y, s, strlen (s));
}
LRESULT WndProc (HWND wnd, UINT msg, WPARAM w, LPARAM l)
{
static short xChar, yChar;
HDC dc;
PAINTSTRUCT ps;
TEXTMETRIC tm;
switch (msg){
case WM_CREATE:
dc = GetDC (wnd);
GetTextMetrics (dc, &tm);
xChar = tm.tmAveCharWidth;
yChar = tm.tmHeight;
ReleaseDC (wnd, dc);
break;
case WM_PAINT:
dc = BeginPaint (wnd, &ps);
Write (dc, xChar, yChar, "Hola");
EndPaint (wnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage (0);
break;
default:
return DefWindowProc (wnd, msg, w, l);
}
return 0l;
}
LRESULT WndProc2 (HWND wnd, UINT msg, WPARAM w, LPARAM l)
{
static short xChar, yChar;
char buf[128];
HDC dc;
PAINTSTRUCT ps;
TEXTMETRIC tm;
switch (msg){
case WM_CREATE:
dc = GetDC (wnd);
GetTextMetrics (dc, &tm);
xChar = tm.tmAveCharWidth;
yChar = tm.tmHeight;
ReleaseDC (wnd, dc);
break;
case WM_PAINT:
dc = BeginPaint (wnd, &ps);
sprintf(buf,"ps.rcPaint = {left = %d, top = %d, right = %d, bottom = %d}",
ps.rcPaint.left,ps.rcPaint.top,ps.rcPaint.right,ps.rcPaint.bottom);
Write (dc, xChar, yChar, buf);
EndPaint (wnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage (0);
break;
default:
return DefWindowProc (wnd, msg, w, l);
}
return 0l;
}
int PASCAL WinMain (HANDLE inst, HANDLE prev, LPSTR cmdline, int show)
{
HWND wnd,wnd2;
MSG msg;
WNDCLASS class;
char className[] = "class"; /* To make sure className >= 0x10000 */
char class2Name[] = "class2";
char winName[] = "Test app";
if (!prev){
class.style = CS_HREDRAW | CS_VREDRAW;
class.lpfnWndProc = WndProc;
class.cbClsExtra = 0;
class.cbWndExtra = 0;
class.hInstance = inst;
class.hIcon = LoadIcon (0, IDI_APPLICATION);
class.hCursor = LoadCursor (0, IDC_ARROW);
class.hbrBackground = GetStockObject (WHITE_BRUSH);
class.lpszMenuName = NULL;
class.lpszClassName = (SEGPTR)className;
if (!RegisterClass (&class))
return FALSE;
}
wnd = CreateWindow (className, winName, WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, 0,
0, inst, 0);
if (!prev){
class.lpfnWndProc = WndProc2;
class.lpszClassName = class2Name;
if (!RegisterClass (&class))
return FALSE;
}
wnd2= CreateWindow (class2Name,"Test app", WS_BORDER | WS_CHILD,
50, 50, 350, 50, wnd, 0, inst, 0);
ShowWindow (wnd, show);
UpdateWindow (wnd);
ShowWindow (wnd2, show);
UpdateWindow (wnd2);
while (GetMessage (&msg, 0, 0, 0)){
TranslateMessage (&msg);
DispatchMessage (&msg);
}
return 0;
}
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