Pictures
The commands in this group are:
| QPx_GetPictureInfo | Get the properties of a 4D picture variable |
| QPx_RotatePicture | Rotate a picture variable by a number of degrees |
| QPx_ResizePicture | Resize a picture variable horizontally and/or vertically |
| QPx_FlipPicture | Flip a picture variable horizontally and/or vertically |
| QPx_CropPicture | Crop a picture to a rectangle |
| QPx_InvertPicture | Invert the colors of a picture |
| QPx_SetPictureResolution | Change the horizontal and/or vertical resolution of a picture variable |
| QPx_CreatePictureThumbnail | Create a high-quality thumbnail from a picture |
| QPx_ExportPicture | Save a picture variable in an image file |
| QPx_ExportPictureToBLOB | Save a picture variable into a BLOB |
| QPx_FilterPicture | Apply a filter to a picture |
| QPx_BrightnessContrastPicture | Apply the "Escape Brightness and Contrast" filter to a picture |
| QPx_SharpenPicture | Apply the "Sharpen" filter to a picture |
| QPx_BlurPicture | Apply the "Blur" filter to a picture |
| QPx_RGBBalancePicture | Apply the "RGB Balance" filter to a picture |
| QPx_HSLBalancePicture | Apply the "HSL Balance" filter to a picture |