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#include <windows.h>
#include <math.h>
__int64 Frame;
__int64 FromStart;
__int64 LastFrame;
RECT rect;
LRESULT CALLBACK WndProc (HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam);
void Render(HWND hwnd,int);
BOOL AnimateNextFrame(int desiredFrameRate);
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
FromStart=GetTickCount();
Frame=0;
LastFrame=62000000000LL;
HWND hwnd;
MSG msg;
WNDCLASSEX wndclass = {sizeof (wndclass), CS_HREDRAW | CS_VREDRAW, WndProc, 0, 0, hInstance,
LoadIcon (NULL, IDI_WINLOGO), LoadCursor (NULL, IDC_ARROW), (HBRUSH) GetStockObject (WHITE_BRUSH),
NULL, "MCT", LoadIcon (NULL, IDI_WINLOGO)};
RegisterClassEx (&wndclass);
hwnd = CreateWindow ("MCT", // window class name
"Bitmap Background", // window's Title
WS_SYSMENU, // window style - This style won't allow the window to resize
CW_USEDEFAULT, // initial x position
CW_USEDEFAULT, // initial y position
800, // Here we pass in our desired width (800)
600, // Here we pass in our desired height (600)
NULL, // This is the parent window handle.
NULL, // This is the window menu handle
hInstance, // This is the programs instance handle.
NULL); // We don't want to pass any extra data in, so NULL
ShowWindow (hwnd, iCmdShow);
UpdateWindow (hwnd);
GetClientRect(hwnd,&rect);
while (1)
{
if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
if(msg.message == WM_QUIT) break;
TranslateMessage (&msg);
DispatchMessage (&msg);
}
else
{
if(AnimateNextFrame(60))
{
Render(hwnd,GetTickCount()-LastFrame);
LastFrame=GetTickCount();
Frame=Frame+1;
}
}
}
UnregisterClass("Window Class",hInstance);
return msg.wParam ;
}
void Render(HWND hwnd,int f)
{
HDC hDC;
PAINTSTRUCT Ps;
hDC = BeginPaint(hwnd, &Ps);
RECT r;
r.top=0;
r.left=0;
r.right=800;
r.bottom=600;
FillRect(hDC,&r,(HBRUSH)CreateSolidBrush(0x00FFFFFF));
XFORM xform;
int nGraphicsMode = SetGraphicsMode(hDC, GM_ADVANCED);
double m_iAngle=Frame*60;//i/360000;
double fangle = (double)m_iAngle / 180.0 * 3.1415926;
xform.eM11 = (float)cos(fangle);
xform.eM12 = (float)sin(fangle);
xform.eM21 = (float)-sin(fangle);
xform.eM22 = (float)cos(fangle);
xform.eDx = (float)(0 - cos(fangle)*0 + sin(fangle)*0);
xform.eDy = (float)(0 - cos(fangle)*0 - sin(fangle)*0);
SetWorldTransform(hDC, &xform);
char buf[8];
itoa(GetTickCount()/1000,buf,10);
TextOut(hDC, 50, 42, buf, 13);
EndPaint(hwnd, &Ps);
}
BOOL AnimateNextFrame(int desiredFrameRate)
{
static float lastTime = 0.0f;
float elapsedTime = 0.0;
// Get current time in seconds (milliseconds * .001 = seconds)
float currentTime = GetTickCount() * 0.001f;
// Get the elapsed time by subtracting the current time from the last time
elapsedTime = currentTime - lastTime;
// Check if the time since we last checked is over (1 second / framesPerSecond)
if( elapsedTime > (1.0f / desiredFrameRate) )
{
// Reset the last time
lastTime = currentTime;
// Return TRUE, to animate the next frame of animation
return TRUE;
}
// We don't animate right now.
return FALSE;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
switch (iMsg)
{
case WM_CREATE:
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_PAINT:
Render(hwnd,0);
break;
}
return DefWindowProc (hwnd, iMsg, wParam, lParam);
}
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