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//DO NOT support XP themes. You will break your window
#include <irrlicht.h>
#include <windows.h>
using namespace irr;
using namespace video;
//It seems the event receiver doesn't like being in a Win32 Window so
//our window processor will have to take care of keyboard input
IrrlichtDevice* device;
IVideoDriver* driver;
bool akey = false; //boolean for the 'a' key
static LRESULT CALLBACK CustomWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_CLOSE:
device->closeDevice();
device->drop();
exit(0);
break;
case WM_KEYDOWN:
switch(wParam)
{
case VK_ESCAPE: //virtual key escape
device->closeDevice();
device->drop();
exit(0);
break;
case 0x41: //'a' key hexadecimal
if(lParam >> 31 == 0x0) //if the key was not pressed beforehand
akey = true;
break;
default:
akey = false;
break;
}
break;
case WM_KEYUP:
switch(wParam)
{
case 0x41: //'a' key hexadecimal
if(lParam >> 31 != 0x0) //if the key was pressed beforehand
akey = false;
break;
}
break;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
break;
}
return DefWindowProc(hWnd, message, wParam, lParam);
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hpre, LPSTR cmd, int cc)
{
const char* Win32ClassName = "CIrrlichtWindowsBase";
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = 0;
wcex.lpfnWndProc = CustomWndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = 0;
wcex.hCursor = 0;
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW);
wcex.lpszMenuName = 0;
wcex.lpszClassName = Win32ClassName;
wcex.hIconSm = 0;
RegisterClassEx(&wcex);
HWND hWnd = CreateWindow( Win32ClassName, "Win32Base",
WS_SYSMENU, CW_USEDEFAULT, CW_USEDEFAULT, 640, 480,
NULL, NULL, hInstance, NULL);
//Put your resolution in the code above where 640, 480 is. The window is NOT resizeable
HWND hIrrlichtWindow = CreateWindow("BUTTON", "", WS_CHILD | WS_VISIBLE,
0, 0, 640, 480, hWnd, NULL, hInstance, NULL);
//Make sure you echo your resolution here (unless you want blank spaces around your
//renders). Do NOT change anything else or you'll break your window
SIrrlichtCreationParameters param;
param.WindowId = reinterpret_cast<s32>(hIrrlichtWindow);
param.DriverType = EDT_DIRECT3D9;
device = createDeviceEx(param);
driver = device->getVideoDriver();
ShowWindow(hWnd , SW_SHOW);
device->sleep(300); //If we don't wait just a little bit the program will have a hard
//time showing up on the taskbar
while(device->run())
{
if(GetActiveWindow() == hWnd)
{
SetFocus(hWnd);
//this line seems pointless, but without it your program will refuse to
//take input at first until the window is deactivated and activated again
EnableWindow(hIrrlichtWindow, true);
if (akey)
printf("a key was pressed ");
driver->beginScene(true, true, 0);
driver->endScene();
}
else
device->sleep(200); //This will give the user a little bit more CPU while
//multitasking with our program
}
device->closeDevice();
device->drop();
return 0;
}
EDIT: isWindowActive is broken (I think because of createDeviceEx), so I have added an if statement to stop rendering if the window is not active using a windows function.
EDIT 2:I've noticed some event receiver problems with this. It seems when the window loses focus the keyboard will not respond anymore. This means you need to use the wnd proc for keyboard receiveing. I have altered the main loop and added some example processing code. You can still do all your mouse and GUI stuff with an Event Receiver.
If you need more hex keycodes or virtual key names try here: http://delphi.about.com/od/objectpascalide/l/blvkc.htm
EDIT 3:I've worked on the key input a bit more. The way it was coded it responded with the key repeat rate. Now it will work as long as the key is pressed down. processing of the event is now in the main loop.
EDIT 4:I've noticed sometimes the program has a hard time showing up on the taskbar. I added a sleep call to give it a chance to get on there so you aren't running a game without a task bar icon ^.^ I also added a sleep statement when the window isn't active so that a multitasker wont have all their processor power taken up by an empty loop!
