Bit stuck (BS_OWNERDRAW button AND MoveWindow(); function)

[thePHPdev]

So, I'm a bit stuck here.

I have it mostly working. However there are a few problems:

1) I have created a custom looking window in order to be "different". So I have to recreate the X button (close button) in the top right corner. I've gotten it to work and close the program. However, it does not change when I hover over it or click on it when it should do.

2) When I try to move the window, it does not move for some reason, the mouse just moves out of the header area, and the window does not move.

Here is the code:

#include <Windows.h>
#include <windowsx.h>
#include "defs.h"

static HWND X_BUTTON;
INT IS_MOUSE_DOWN_HEADER = FALSE;
WNDPROC X_BUTTON_PROC;
static HWND MAIN_WINDOW;
RECT MAIN_WINDOW_CLIENT_RECT;
INT W = 800;
INT H = 400;
INT IS_HOVERERING_X = FALSE;
PAINTSTRUCT ps;

int xSetButtonState(int state) {
	HBITMAP xbmpSource;
	HDC hdcSource;
	HDC hdcDest;
	
	hdcDest = BeginPaint(X_BUTTON, &ps); // Begin paint

	hdcSource = CreateCompatibleDC(GetDC(0));

	switch(state) {
		case ID_BUTTON_STATE_HOVER:
			xbmpSource = (HBITMAP)LoadImage(NULL, L"x_button_hover.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			SelectObject(hdcSource, xbmpSource);
			BitBlt(hdcDest, 0, 0, 25, 20, hdcSource, 0, 0, SRCCOPY);
			IS_HOVERERING_X = TRUE;
			break;
		case ID_BUTTON_STATE_NORMAL:
			xbmpSource = (HBITMAP)LoadImage(NULL, L"x_button.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			SelectObject(hdcSource, xbmpSource);
			BitBlt(hdcDest, 0, 0, 25, 20, hdcSource, 0, 0, SRCCOPY);
			IS_HOVERERING_X = FALSE;
			break;
		case ID_BUTTON_STATE_PRESSED:
			xbmpSource = (HBITMAP)LoadImage(NULL, L"x_button_pressed.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			SelectObject(hdcSource, xbmpSource);
			BitBlt(hdcDest, 0, 0, 25, 20, hdcSource, 0, 0, SRCCOPY);
			IS_HOVERERING_X = TRUE;
		default:
			return -1;
			break;
	}

	EndPaint(X_BUTTON, &ps);

	DeleteDC(hdcSource);
	DeleteDC(hdcDest);
	DeleteObject(xbmpSource);
	return 0;
}

LRESULT CALLBACK xButtonProc(HWND hWindow, UINT message, WPARAM wParam, LPARAM lParam) {
	POINT p;
	GetCursorPos(&p);
	ScreenToClient(MAIN_WINDOW, &p);
	switch(message) {
		case WM_LBUTTONDOWN:
		{
			if(p.x > (W - 30) && p.x < (W - 5) && p.y > 5 && p.y < 24) {
				xSetButtonState(ID_BUTTON_STATE_PRESSED);
			}
			break;
		}
		case WM_MOUSEMOVE:
		{
			if(p.x > (W - 30) && p.x < (W - 5) && p.y > 5 && p.y < 24) {
				xSetButtonState(ID_BUTTON_STATE_HOVER);
			} else {
				IS_HOVERERING_X = FALSE;
			}
			break;
		}
		case WM_PAINT:
		{
			if(IS_HOVERERING_X == FALSE) {
				xSetButtonState(ID_BUTTON_STATE_NORMAL);
			}
			break;
		}
		case WM_LBUTTONUP:
		{
			if(p.x > (W - 30) && p.x < (W - 5) && p.y > 5 && p.y < 24) {
				DestroyWindow(MAIN_WINDOW);
			}
			break;
		}
		default:
		{
			return CallWindowProc(X_BUTTON_PROC, hWindow, message, wParam, lParam);
		}
	}
	return 0;
}

LRESULT CALLBACK WinProc(HWND hWindow, UINT message, WPARAM wParam, LPARAM lParam) {
	switch(message) {
		case WM_MOUSEMOVE:
		{
			int x = GET_X_LPARAM(lParam);
			int y = GET_Y_LPARAM(lParam);

			if(x > 0 && x < (W - 32) && y > 0 && y < 28) {
				SetCursor(LoadCursor(NULL, IDC_SIZEALL));
				switch(wParam) {
					case MK_LBUTTON:
					{
						POINT p_screen;
						GetCursorPos(&p_screen);
						MoveWindow(MAIN_WINDOW, p_screen.x - x, p_screen.y - y, W, H, FALSE);
						break;
					}
				}
			} else {
				SetCursor(LoadCursor(NULL, IDC_ARROW));
			}

			break;
		}
		case WM_SIZE:
		{
			GetClientRect(MAIN_WINDOW, &MAIN_WINDOW_CLIENT_RECT);

			W = MAIN_WINDOW_CLIENT_RECT.right - MAIN_WINDOW_CLIENT_RECT.left;
			H = MAIN_WINDOW_CLIENT_RECT.bottom - MAIN_WINDOW_CLIENT_RECT.top;
			break;
		}
		case WM_PAINT:
		{
			W = 800;
			H = 400;
			HBITMAP bmpWindowTopLeft = (HBITMAP)LoadImage(NULL, L"window_top_left_129_40.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			HBITMAP bmpWindowTopRight = (HBITMAP)LoadImage(NULL, L"window_top_right_34_40.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			HBITMAP bmpWindowBottomLeft = (HBITMAP)LoadImage(NULL, L"window_bottom_left_40_40.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			HBITMAP bmpWindowBottomRight = (HBITMAP)LoadImage(NULL, L"window_bottom_right_40_40.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			HBITMAP bmpWindowLeftCenter = (HBITMAP)LoadImage(NULL, L"window_left_center_40_1.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			HBITMAP bmpWindowRightCenter = (HBITMAP)LoadImage(NULL, L"window_right_center_40_1.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			HBITMAP bmpWindowBottomCenter = (HBITMAP)LoadImage(NULL, L"window_bottom_center_1_40.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			HBITMAP bmpWindowTopCenter = (HBITMAP)LoadImage(NULL, L"window_top_center_1_40.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			HBITMAP bmpWindowCenter = (HBITMAP)LoadImage(NULL, L"window_center_2_2.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
			HBITMAP bmpWindowTitle = (HBITMAP)LoadImage(NULL, L"window_title.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);

			HDC hdcSource;
			HDC hdcDest;
			
			hdcDest = BeginPaint(MAIN_WINDOW, &ps); // Begin paint
			
			hdcSource = CreateCompatibleDC(GetDC(0));

			SelectObject(hdcSource, bmpWindowTopLeft);
			BitBlt(hdcDest, 0, 0, 129, 40, hdcSource, 0, 0, SRCCOPY);

			SelectObject(hdcSource, bmpWindowTopRight);
			BitBlt(hdcDest, (W - 34), 0, 34, 40, hdcSource, 0, 0, SRCCOPY);

			SelectObject(hdcSource, bmpWindowTopCenter);
			StretchBlt(hdcDest, 129, 0, (W - 34) - 129, 40, hdcSource, 0, 0, 1, 40, SRCCOPY);

			SelectObject(hdcSource, bmpWindowBottomLeft);
			BitBlt(hdcDest, 0, (H - 40), 40, 40, hdcSource, 0, 0, SRCCOPY);

			SelectObject(hdcSource, bmpWindowBottomRight);
			BitBlt(hdcDest, (W - 40), (H - 40), 40, 40, hdcSource, 0, 0, SRCCOPY);

			SelectObject(hdcSource, bmpWindowBottomCenter);
			StretchBlt(hdcDest, 40, (H - 40), (W - 40) - 40, 40, hdcSource, 0, 0, 1, 40, SRCCOPY);

			SelectObject(hdcSource, bmpWindowLeftCenter);
			StretchBlt(hdcDest, 0, 40, 40, (H - 40) - 40, hdcSource, 0, 0, 40, 1, SRCCOPY);

			SelectObject(hdcSource, bmpWindowRightCenter);
			StretchBlt(hdcDest, (W - 40), 40, 40, (H - 40) - 40, hdcSource, 0, 0, 40, 1, SRCCOPY);

			SelectObject(hdcSource, bmpWindowCenter);
			StretchBlt(hdcDest, 40, 40, (W - 40) - 40, (H - 40) - 40, hdcSource, 0, 0, 2, 2, SRCCOPY);

			SelectObject(hdcSource, bmpWindowTitle);
			BitBlt(hdcDest, 5, 5, 102, 20, hdcSource, 0, 0, SRCCOPY);

			EndPaint(MAIN_WINDOW, &ps); // End paint

			DeleteDC(hdcDest);
			DeleteDC(hdcSource);
			DeleteObject(bmpWindowTopLeft);
			DeleteObject(bmpWindowTopRight);
			DeleteObject(bmpWindowBottomLeft);
			DeleteObject(bmpWindowBottomRight);
			DeleteObject(bmpWindowLeftCenter);
			DeleteObject(bmpWindowRightCenter);
			DeleteObject(bmpWindowBottomCenter);
			DeleteObject(bmpWindowTopCenter);
			DeleteObject(bmpWindowTopLeft);
			break;
		}
		case WM_CREATE:
		{
			X_BUTTON = CreateWindow(
				L"BUTTON",
				L"",
				WS_VISIBLE | WS_CHILD | BS_OWNERDRAW,
				(W - 30), 5,
				25, 19,
				hWindow,
				(HMENU) ID_X_BUTTON,
				NULL,
				NULL
			);

			X_BUTTON_PROC = (WNDPROC) SetWindowLong(X_BUTTON, GWL_WNDPROC, (LONG) xButtonProc);
			break;
		}
		case WM_CLOSE:
			DestroyWindow(MAIN_WINDOW);
			break;
		case WM_DESTROY:
			PostQuitMessage(0);
			break;
		default:
			return DefWindowProc(hWindow, message, wParam, lParam);
	}
	return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow) {
	WNDCLASSEX window;
	MSG message;
	
	window.cbSize = sizeof(WNDCLASSEX);
	window.cbClsExtra = 0;
	window.cbWndExtra = 0;
	window.hInstance = hInstance;
	window.style = 0;
	window.lpszClassName = L"MAIN_CLASS";
	window.lpfnWndProc = WinProc;
	window.lpszMenuName = NULL;
	window.hbrBackground = (HBRUSH) TRANSPARENT;
	window.hCursor = LoadCursor(hInstance, IDC_ARROW);
	window.hIcon = LoadIcon(hInstance, IDI_APPLICATION);
	window.hIconSm = LoadIcon(hInstance, IDI_APPLICATION);

	if(!RegisterClassEx(&window)) {
		MessageBox(NULL, L"Could not register window class!", L"Error", MB_OK | MB_ICONERROR);
		return 0;
	}

	MAIN_WINDOW = CreateWindowEx(
		NULL,
		L"MAIN_CLASS",
		L"STYLING",
		WS_POPUP | WS_VISIBLE | WS_SYSMENU | WS_CLIPCHILDREN,
		50, 50,
		W, H,
		NULL,
		NULL,
		hInstance,
		NULL
	);

	if(MAIN_WINDOW == NULL) {
		MessageBox(NULL, L"Could not create window!", L"Error", MB_OK | MB_ICONERROR);
		return 0;
	}

	ShowWindow(MAIN_WINDOW, nCmdShow);

	UpdateWindow(MAIN_WINDOW);

	while(GetMessage(&message, MAIN_WINDOW, 0, 0) > 0) {
		TranslateMessage(&message);
		DispatchMessage(&message);
	}
	
	return (int) message.wParam;
}

Thanks!

[modoran]

Window style seems invalid:

MAIN_WINDOW = CreateWindowEx(
		NULL,
		L"MAIN_CLASS",
		L"STYLING",
		WS_POPUP | WS_VISIBLE | WS_SYSMENU | WS_CLIPCHILDREN,
		50, 50,
		W, H,
		NULL,
		NULL,
		hInstance,
		NULL
	);

WS_SYSMENU:
The window has a window menu on its title bar. The WS_CAPTION style must also be specified.

http://msdn.microsoft.com/en-us/library/windows/desktop/ms632600(v=vs.85).aspx

[thePHPdev]

No, I've created a custom window border and frame:

This is what I currently have:

http://www.imghst.org/uploads/mbi4q352dlj6.PNG

So, I cannot use WS_CAPTION.

[thePHPdev]

Anyone?

[guestgulkan]

could you post defs.h ? That would allow us to run it and see