gdivideo.cpp File Reference

#include "winvideo.h"
#include <gdiplus.h>
#include <stdio.h>

Include dependency graph for gdivideo.cpp:

Go to the source code of this file.

Functions
bool	DisplayError (LPSTR lpstrErr, HRESULT hres)
	display system error
LRESULT CALLBACK	InternalWndProc (HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
	Win event processing function.
Variables
Gdiplus::Bitmap *	g_pBitmap
Gdiplus::GdiplusStartupInput	gdiplusStartupInput
ULONG_PTR	gdiplusToken

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Function Documentation

bool DisplayError	(	LPSTR	lpstrErr,
		HRESULT	hres
	)

Create a dialog box and tell the user what went wrong.

Definition at line 45 of file gdivideo.cpp.

References g_hAppWnd.

{
    static bool InError = false;
    int retval = 0;
    if (!InError)
    {
        InError = true;
        LPCSTR lpMsgBuf;
        if(!hres) hres = GetLastError();
        FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
                               NULL, hres, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &lpMsgBuf, 0, NULL );
        retval = MessageBox(g_hAppWnd, lpstrErr, lpMsgBuf, MB_OK|MB_ICONERROR);
        LocalFree( (HLOCAL)lpMsgBuf );
        InError = false;
    }
    return false;
}

LRESULT CALLBACK InternalWndProc	(	HWND	hwnd,
		UINT	iMsg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 64 of file gdivideo.cpp.

References CheckBoundries(), DDOverlayInit(), DDPrimaryInit(), DestroyOverlay(), DestroyPrimary(), DisplayError(), DrawOverlay(), g_dwXRatio, g_dwYRatio, g_OverlayFlags, g_OverlayFX, g_pBitmap, g_pDDSOverlay, g_pDDSPrimary, g_pUserProc, g_rcDst, g_rcSrc, g_sizex, g_sizey, g_video, L, mouse(), video::on_key(), video::on_mouse(), and video::updating.

{
    switch (iMsg)
    {
        case WM_MOVE:
            // Check to make sure our window exists before we tell it to repaint.
            // This will fail the first time (while the window is being created).
            if (hwnd) {
                InvalidateRect(hwnd, NULL, FALSE);
                UpdateWindow(hwnd);
            }
            return 0L;

        case WM_PAINT:
            {
                PAINTSTRUCT ps;
                Gdiplus::Graphics graphics( BeginPaint(hwnd, &ps) );
                // redraw just requested area. This call is as fast as simple DrawImage() call.
                if(g_video->updating) graphics.DrawImage(g_pBitmap, ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.left, ps.rcPaint.top,
                                    ps.rcPaint.right, ps.rcPaint.bottom, Gdiplus::UnitPixel);
                EndPaint(hwnd, &ps);
            }
            return 0L;

        // Proccess all mouse and keyboard events
        case WM_LBUTTONDOWN:    g_video->on_mouse( (int)LOWORD(lParam), (int)HIWORD(lParam), 1); break;
        case WM_LBUTTONUP:      g_video->on_mouse( (int)LOWORD(lParam), (int)HIWORD(lParam), -1); break;
        case WM_RBUTTONDOWN:    g_video->on_mouse( (int)LOWORD(lParam), (int)HIWORD(lParam), 2); break;
        case WM_RBUTTONUP:      g_video->on_mouse( (int)LOWORD(lParam), (int)HIWORD(lParam), -2); break;
        case WM_MBUTTONDOWN:    g_video->on_mouse( (int)LOWORD(lParam), (int)HIWORD(lParam), 3); break;
        case WM_MBUTTONUP:      g_video->on_mouse( (int)LOWORD(lParam), (int)HIWORD(lParam), -3); break;
        case WM_CHAR:           g_video->on_key( (int)wParam); break;

        // some useless stuff
        case WM_ERASEBKGND:     return 1;  // keeps erase-background events from happening, reduces chop
        case WM_DISPLAYCHANGE:  return 0;

        // Now, shut down the window...
        case WM_DESTROY:        PostQuitMessage(0); return 0;
    }
    // call user defined proc, if exists
    return g_pUserProc? g_pUserProc(hwnd, iMsg, wParam, lParam) : DefWindowProc(hwnd, iMsg, wParam, lParam);
}

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Variable Documentation

Gdiplus::Bitmap* g_pBitmap

Definition at line 40 of file gdivideo.cpp.

Referenced by InternalWndProc().

Gdiplus::GdiplusStartupInput gdiplusStartupInput

Definition at line 42 of file gdivideo.cpp.

ULONG_PTR gdiplusToken

Definition at line 41 of file gdivideo.cpp.