Win32 Button Control

Creating a button control in a Win32 window (hWnd).

Define a unique ID for the button control: 
#define BTN_MYBUTTON_ID	503


Create the control after the main Win32 window has been created:
// Create button control.
CreateWindowEx(NULL, L"BUTTON", L"Click Me", WS_VISIBLE | WS_CHILD,
		35, 35, 120, 20, hWnd, (HMENU)BTN_KEYGUARD_ID, NULL, NULL);


Listen for activity in your message handler (WndProc):
switch (message) {
case WM_COMMAND:
	wmId    = LOWORD(wParam);
	wmEvent = HIWORD(wParam);
		
	switch (wmId) {
	case BTN_MYBUTTON_ID:
		// Your code here.
		MessageBox(hWnd, L"I was clicked!", L"Info", MB_OK);
		break;


Setting and getting text from your button control:
SetDlgItemText(hWnd, BTN_MYBUTTON_ID, "Foo!");
GetDlgItemText(hWnd, BTN_MYBUTTON_ID, szBuf, sizeof(szBuf));


This document was last updated February 15th, 2011.
Written by: Dag Jonny Nedrelid
©2007-2012 http://thronic.com

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