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LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message) /* handle the messages */
{
case WM_CREATE:
{
HWND textBox = CreateWindowEx(0, "EDIT", "123", WS_CHILD|WS_VISIBLE, 15, 15, 100, 35, hwnd, NULL, NULL, NULL);
char* buffer;
int length = GetWindowTextLength( textBox );
++length;
buffer = (char*) malloc( length );
GetWindowText( textBox, buffer, length );
MessageBox(hwnd, buffer, "String Value", 0);
int numValue = atoi( buffer );
if( numValue == 123 )
{
MessageBox(hwnd, "it worked", "Integer Value", 0);
}
break;
}
case WM_DESTROY:
PostQuitMessage (0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc (hwnd, message, wParam, lParam);
}
return 0;
}
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