底边距不起作用在MFC中的专案

问题描述

我正在使用WindowsCE 2013的C ++ MFC框架 我的目的是准备正确的打印形式。 我初始化了PAGESETUPDLG结构，并使用以下值对其进行了初始化 不幸的是psd.rtMinMargin.bottom = 500;的值应为0.5英寸不起作用。 无论在打印输出上设置的值是多少，始终为1英寸。 我无法解释这是什么原因。

BOOL Druk::Configuration()
{
    TCHAR DriverName[256];
    TCHAR DeviceName[256];
    TCHAR OutputName[256];
    ZeroMemory(&psd,sizeof(psd));
    psd.lStructSize = sizeof(psd); // psd is member of PAGESETUPDLG structure
    //psd.hwndOwner = hWnd;
    psd.hDevMode = NULL; // Don't forget to free or store hDevMode.
    psd.hDevNames = NULL; // Don't forget to free or store hDevNames.
    psd.Flags = PSD_INTHOUSANDTHSOFINCHES | PSD_MARGINS;
    psd.rtMargin.top = 100;
    psd.rtMargin.left = 100;
    psd.rtMargin.right = 100;
    psd.rtMargin.bottom = 500; 
    psd.rtMinMargin.bottom = 500;
    lf_vertic.lfheight = 30; // is member of LOGFONT structure
    lf_vertic.lfWidth = 0;
    //lf.lfOrientation = 2700;
    lf_vertic.lfEscapement = 0;
    lf_vertic.lfUnderline = FALSE;
    lf_vertic.lfWeight = FW_BOLD;
    lf_horizont.lfheight = 30;
    lf_horizont.lfWidth = 0;
    //lf.lfOrientation = 2700;
    lf_horizont.lfEscapement = 2700;
    lf_horizont.lfUnderline = FALSE;
    lf_horizont.lfWeight = FW_BOLD;
    hFontVertic = CreateFontIndirect(&lf_vertic);
    hFontHorizont = CreateFontIndirect(&lf_horizont);
    DWORD error;
    if (PageSetupDlg(&psd) == TRUE)
    {
        memcpy(&dm,(DEVMODE *)(psd.hDevMode),sizeof(DEVMODE));
        lstrcpy(DriverName,((TCHAR *)((BYTE *)psd.hDevNames + ((DEVNAMES *)psd.hDevNames)->wDriverOffset)));
        lstrcpy(DeviceName,((TCHAR *)((BYTE *)psd.hDevNames + ((DEVNAMES *)psd.hDevNames)->wDeviceOffset)));
        lstrcpy(OutputName,((TCHAR *)((BYTE *)psd.hDevNames + ((DEVNAMES *)psd.hDevNames)->wOutputOffset)));
        //hDC = CreateDC(DriverName,DeviceName,OutputName,&dm); // Wersja dla WinAPI do usunięcia w wersji finalnej
        hDC.CreateDC(DriverName,NULL);
    }
    error = CommDlgExtendedError();
    return TRUE;

解决方法

根据https://docs.microsoft.com/en-us/windows/win32/api/commdlg/ns-commdlg-pagesetupdlga

rtMinMargin

类型：RECT

左，上，右和下页边距的最小允许宽度。如果未设置PSD_MINMARGINS标志，则系统将忽略该成员。

您没有设置PSD_MINMARGINS标志