转一个PDevMode格式属性说明...

//PDevMode = _devicemodeW;
//  _devicemodeW = record
//    dmDeviceName: array[0..CCHDEVICENAME - 1] of WideChar; {打印设备名称,唯一值}
//    dmSpecVersion: Word;  {DevMode的版本号}
//    dmDriverVersion: Word;  {打印驱动程序版本号}
//    dmSize: Word; {DevMode结构的字节大小}
//    dmDriverExtra: Word; {dmDriverExtra成员结构的大小}
//    dmFields: DWORD; {DevMode结构中哪些成员已被初始化}
//    dmOrientation: SHORT; {纸张方向;1(纵向)2(横向)}
//    dmPaperSize: SHORT; {纸张大小}
//    dmPaperLength: SHORT; {自定义纸张的高度,PageSize为0或256时有效}
//    dmPaperWidth: SHORT; {自定义纸张的宽度,PageSize为0或256时有效}
//    dmScale: SHORT; {打印输出的缩放系数}
//    dmCopies: SHORT; {打印份数}
//    dmDefaultSource: SHORT; {送纸的默认纸盒}
//    dmPrintQuality: SHORT; {打印机的分辨率;4-高品质 3-中品质 2-低品质 1-草稿}
//    dmColor: SHORT; {打印输出为彩色或是单色;1-彩色 2-单色}
//    dmDuplex: SHORT; {纸张是否为双面打印输出;1-单面 2-水平 3-垂直(需打印支持)}
//    dmYResolution: SHORT; {Y方向分辨率;单位:点}
//    dmTTOption: SHORT; {如何打印TrueType字体}
//    dmCollate: SHORT; {多份时,是否逐份打印}
//    dmFormName: array[0..CCHFORMNAME - 1] of WideChar; {纸张名称}
//    dmLogPixels: Word; {}
//    dmBitsPerPel: DWORD; {显示设备的颜色分辨率;单位:像素}
//    dmPelsWidth: DWORD; {可见设备表面(屏幕或打印机)的宽度}
//    dmPelsHeight: DWORD;  {可见设备表面(屏幕或打印机)的高度}
//    dmDisplayFlags: DWORD; {设备的显示模式}
//    dmDisplayFrequency: DWORD; {显示设备在特定模式下的频率}
//    dmICMMethod: DWORD; {}
//    dmICMIntent: DWORD; {}
//    dmMediaType: DWORD; {}
//    dmDitherType: DWORD; {}
//    dmICCManufacturer: DWORD; {}
//    dmICCModel: DWORD; {}
//    dmPanningWidth: DWORD; {}
//    dmPanningHeight: DWORD; {}
//  end;