This will succeed only if hImage was loaded by LoadIcon or LoadCursor, or by LoadImage with the LR_SHARED flag. If this flag is set, CopyImage uses the size in the resource file closest to the desired size. Without this flag, CopyImage stretches the original image to the new size. This is useful for creating a different-sized copy when the resource file contains multiple sizes of the resource. Tries to reload an icon or cursor resource from the original resource file rather than simply copying the current image. Valueĭeletes the original image after creating the copy. This parameter can be one or more of the following values. If this is zero, then the returned image will have the same height as the original hImage. The desired height, in pixels, of the image. If this is zero, then the returned image will have the same width as the original hImage. The desired width, in pixels, of the image. This parameter can be one of the following values. If necessary, the function stretches the bits to fit the desired size of the new image. In addition, the target positions of the squares are different.Creates a new image (icon, cursor, or bitmap) and copies the attributes of the specified image to the new one. In the images on the left and in the center, the blue square was added, in the image on the right it was copied. The following are samples of the program results. Hr := F_VN_TransformIntoDisplayableImage(ipImageMerge, ipImageMergeDisp, hr) Result Hr := F_VN_AddImages(ipImageBlue, ipImageMerge, ipImageMerge, hr) Hr := F_VN_CopyImage(ipImageBlue, ipImageMerge, hr) Hr := F_VN_SetRoi(aPositionBlue, aPositionBlue, 500, 500, ipImageMerge, hr) Copy or mix blue image to selected region in merge-image Copy red image to selected region in merge-image Hr := F_VN_CreateImageAndSetPixels(ipImageBlue, 500, 500, TCVN_ET_USINT, 3, aBlue, hr) Hr := F_VN_CreateImageAndSetPixels(ipImageRed, 500, 500, TCVN_ET_USINT, 3, aRed, hr) Hr := F_VN_CreateImageAndSetPixels(ipImageMerge, 1000, 1000, TCVN_ET_USINT, 3, aBlack, hr) IpImageMergeDisp : ITcVnDisplayableImage ĪBlue : TcVnVector4_LREAL := īCopyBlue : BOOL := FALSE Program // create images & set colors The parameter bCopyBlue determines whether the blue image is copied or mixed. In the sample, the position of the two copied images can be changed using the variables aPositionRed and aPositionBlue. The advantage of this version is that instead of copying, it is also possible to mix the blue and the mixed image. However, to copy the blue image, a programmed version with the same functionality is used. The function is used in the sample to copy the red image to the mixed image. Both image regions have the same size and must be fully present in the image. The function F_VN_CopyImageRegionToRegion takes two images and two image regions and copies the contents of one image region to the other. If required, this can also be done in a partially transparent manner with the aid of arithmetic image operations. The methods shown below can be used to swap rectangular image areas between images. Selecting a ROI and adding two images using the function F_VN_AddImages.Selecting a ROI and copying an image, and.Using the function F_VN_CopyImageRegionToRegion,.In this sample, two images are copied to another image using different methods:
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