PSD for PocketPC Windows Mobile 2003

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Introduction

MyPSD::CPSD is a C++ class that can load images saved in Adobe's Photoshop native format. I have ported my original code to work under the PocketPC platform.

Using MyPSD::CPSD in your projects

To use the class, just include in your project the two files, MyPSD.h/.cpp. Since the class is placed inside its own namespace, either use the full name, MyPSD::CPSD psd;, or first the directive, using namespace MyPSD; and then just declare a local variable CPSD psd;.

How to use MyPSD::CPSD

MyPSD::CPSD psd; int nErrorCode = psd.Load("c:\\image.psd");
if ( 0 == nErrorCode ) // No errors were found

{
     int nDPI_x, nDPI_y; // for Horizontal & Vertical dpi

     int nWidth, nHeight; // for Width & Height in pixels

     psd.Dimensions(nWidth, nHeight);
     psd.DPI(nDPI_x, nDPI_y);
     HBITMAP hBitmap = psd.Detach();
}
else if ( -1 == nErrorCode ) // Cannot open file

    ; // Do something

else if ( -2 == nErrorCode ) // Error in the header of the file

    ; // Do something 

else if ( -3 == nErrorCode ) // Error in ColourMode Data, i.e. Palette

    ; // Do something       // File must be Index to have ColourMode Data 

else if ( -4 == nErrorCode ) // Error in ImageResource section of the file

    ; // Do something

else if ( -5 == nErrorCode ) // Error in Mask Info section of the file

    ; // Do something 

else if ( -6 == nErrorCode ) // Error in Image Data section of the file

    ; // Do something       // Actual data for pixels 

else if ( -7 == nErrorCode ) // Image is Black & White

    ; // Do something       // not yet implemented 

else if ( -8 == nErrorCode ) // An unsupported file format encountered

    ; // Do something 

else if ( -9 == nErrorCode ) // Cannot create HBITMAP handle

    ; // Do something 

else if ( -10 == nErrorCode ) // Data are compressed

    ; // Do something        // Zip format without prediction. Not yet

                             // implemented 

else if ( -11 == nErrorCode ) // Data are compressed

    ; // Do something        // Zip format with prediction. Not yet 

                             // implemented 

else if ( -12 == nErrorCode ) // Data are in an unknown format

         ; // Do something

Supported formats

The following formats are supported: RGB, Lab, CMY, CMYK, Indexed, Grayscale, Duotone. These formats could be uncompressed or compressed with RLE.

Unsupported formats/Not yet implemented

Bitmap (Black and White), and any format that is compressed with ZIP with prediction and without prediction, and that is basically because I don't know the ZIP compression algorithm (with and without prediction).

License

The class MyPSD::CPSD is free; but if you are to use it in any kind of software, especially commercial ones, I would appreciate if you could just email me; it's nice to learn that something you've written is used by others.

Thanks

I would like to thank image_processor of this forum for fixing a bug I had in the original code.