Main.cpp

#include "Main.h"


int Width = GetSystemMetrics(SM_CXSCREEN);
int Height = GetSystemMetrics(SM_CYSCREEN);

const MARGINS Margin = { 0, 0, Width, Height };

char lWindowName[256] = " ";
HWND hWnd;

char tWindowName[256] = "Counter-Strike: Global Offensive";
HWND tWnd;

RECT tSize;
MSG Message;


LRESULT CALLBACK WinProc(HWND hWnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
	switch (Message)
	{	
	case WM_PAINT:
		Render();
		break;

	case WM_CREATE:
		DwmExtendFrameIntoClientArea(hWnd, &Margin);
		break;

	case WM_DESTROY:
		PostQuitMessage(1);
		return 0;

	default:
		return DefWindowProc(hWnd, Message, wParam, lParam);
		break;
	}
	return 0;
}


int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hSecInstance, LPSTR nCmdLine, INT nCmdShow)
{

	CreateThread(0, 0, (LPTHREAD_START_ROUTINE)SetWindowToTarget, 0, 0, 0);

	WNDCLASSEX wClass;
	wClass.cbClsExtra = NULL;
	wClass.cbSize = sizeof(WNDCLASSEX);
	wClass.cbWndExtra = NULL;
	wClass.hbrBackground = (HBRUSH)CreateSolidBrush(RGB(0, 0, 0));
	wClass.hCursor = LoadCursor(0, IDC_ARROW);
	wClass.hIcon = LoadIcon(0, IDI_APPLICATION);
	wClass.hIconSm = LoadIcon(0, IDI_APPLICATION);
	wClass.hInstance = hInstance;
	wClass.lpfnWndProc = WinProc;
	wClass.lpszClassName = lWindowName;
	wClass.lpszMenuName = lWindowName;
	wClass.style = CS_VREDRAW | CS_HREDRAW;

	if(!RegisterClassEx(&wClass))
		exit(1);

	tWnd = FindWindow(0, tWindowName);
	if (tWnd)
	{
		GetWindowRect(tWnd, &tSize);
		Width = tSize.right - tSize.left;
		Height = tSize.bottom - tSize.top;
		hWnd = CreateWindowEx(WS_EX_TOPMOST | WS_EX_TRANSPARENT | WS_EX_LAYERED, lWindowName, lWindowName,  WS_POPUP, 1, 1, Width, Height, 0, 0, 0, 0);
		SetLayeredWindowAttributes(hWnd, 0, 1.0f, LWA_ALPHA);
		SetLayeredWindowAttributes(hWnd, 0, RGB(0, 0, 0), LWA_COLORKEY);
		ShowWindow( hWnd, SW_SHOW);
	}

	DirectXInit(hWnd);

	for (;;)
	{
		if(PeekMessage(&Message, hWnd, 0, 0, PM_REMOVE))
		{
			DispatchMessage(&Message);
			TranslateMessage(&Message);
		}
		Sleep(1);
	}
	return 0;
}


void SetWindowToTarget()
{
	while(true)
	{
		tWnd = FindWindow(0, tWindowName);
		if (tWnd)
		{
			GetWindowRect(tWnd, &tSize);
			Width = tSize.right - tSize.left;
			Height = tSize.bottom - tSize.top;
			DWORD dwStyle = GetWindowLong(tWnd, GWL_STYLE);
			if(dwStyle & WS_BORDER)
			{
				tSize.top += 23;
				Height -= 23;
			}
			MoveWindow(hWnd, tSize.left, tSize.top, Width, Height, true);
		}
		else
		{
			char ErrorMsg[125];
			sprintf(ErrorMsg, "Make sure %s is running!", tWindowName);
			MessageBox(0, ErrorMsg, "Error - Cannot find the game!", MB_OK | MB_ICONERROR);
			exit(1);
		}
		Sleep(1);
	}
}