监视压缩器和解压缩器进度

以下示例演示如何使用 ICSetStatusProc 函数向压缩器或解压缩器通知回调函数地址：

ICSetStatusProc(compvars.hic, 0, (LPARAM) (UINT) hwndApp, 
    &PreviewStatusProc); 
 

以下示例演示由上一个片段安装的回调函数：

LONG CALLBACK export PreviewStatusProc(LPARAM lParam, 
    UINT message, LONG l) 
{ 
    switch (message) 
    { 
        MSG msg; 
        case ICSTATUS_START: 
         
        // Create and display status dialog box. 
         
            break; 
        case ICSTATUS_STATUS: 
            ProSetBarPos((int) l); // sets status bar positions 
 
        // Watch for abort message 
            while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) 
            { 
                if (msg.message == WM_KEYDOWN && msg.wParam == 
                    VK_ESCAPE) 
                    return 1; 
                if (msg.message == WM_SYSCOMMAND && 
                    (msg.wParam & 0xFFF0) == SC_CLOSE) 
                    return 1; 
 
                TranslateMessage(&msg); 
                DispatchMessage(&msg); 
            } 
            break; 
        case ICSTATUS_END: 
         
        // Close and destroy status dialog box. 
         
            break; 
        case ICSTATUS_YIELD: 
         
         
         
            break; 
    } 
    return 0; 
}