How do I get the size of the picture or image that I have loaded onto the Picture Box, in bytes. Could you provide me with the functions or source code in VB?
Thank you.
dev.
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How do I get the size of the picture or image that I have loaded onto the Picture Box, in bytes. Could you provide me with the functions or source code in VB?
Thank you.
dev.
Try this extra-cheesy code to get Bitmap size:
Remember to repalce "Picture.BMP" with a valid file name
' from MSDN
private Type BITMAPINFOHEADER '40 bytes
biSize as Long ' not the image size
biWidth as Long
biHeight as Long
biPlanes as Integer
biBitCount as Integer ' 2 ^ InfoHeader.biBitCount = Bits per Pixel
biCompression as Long ' 0=none, 1=RLE8, 2=RLE4, 3=BitFields
biSizeImage as Long ' # of bytes for image, not the file size , not all
'graphics programs fill this in properly is 1K = 1000 OR = 1024
' try this: it should be close
' (InfoHeader.biBitCount / 8) * InfoHeader.biWidth * InfoHeader.biHeight
biXPelsPerMeter as Long
biYPelsPerMeter as Long
biClrUsed as Long ' colors used in this image
biClrImportant as Long ' colors important to this image
End Type
private Type BITMAPFILEHEADER
bfType as Integer
bfSize as Long
bfReserved1 as Integer
bfReserved2 as Integer
bfOhFileBits as Long
End Type
' replace "Picture.BMP" with common dialog or some valid name
aFile = FreeFile
Open "Picture.BMP" for binary Access Read as #aFile
get #aFile, , FileHeader
get #aFile, , InfoHeader
Close #aFile
MsgBox "This image is :" & vbCrLf & _
InfoHeader.biHeight & " Pixels High" & vbCrLf & _
InfoHeader.biWidth & " Pixels Wide" & vbCrLf & _
InfoHeader.biSizeImage & " Bytes (header)" & vbCrLf & _
(InfoHeader.biBitCount / 8) * InfoHeader.biWidth * InfoHeader.biHeight & _
" Bytes (calculated)"