Hi All. Thanks for the advice but it was a programmer error :(
I had three images overlayed on top of each other and was trying to pick up the colour in one of the hidden images. What I wasnt doing however was actually LOADING that image from file :( Thanks for the advice though..... Chris >>> [EMAIL PROTECTED] 29/06/2005 7:12:04 p.m. >>> Hi Chris, Your code is right but it will work with valid bitmaps only. If you try the same with Jpeg images, it will not work. Regards, Sabu iSOFT, India. Original message : Message: 3 ********************************** THIS E-MAIL IS CONFIDENTIAL. If you have received this transmission in error please notify iSOFT Group plc immediately either by replying to this e-mail or by telephone on +44 (0) 870 050 8901 and then delete this e-mail. iSOFT Group plc has taken all reasonable precautions to protect against infection by software viruses, but does not accept any responsibility for any damage which you sustain as a result of software viruses. You should therefore scan attachments (if any) prior to opening them. *********************************** Date: Wed, 29 Jun 2005 09:00:51 +1200 From: "Chris Veale" <[EMAIL PROTECTED]> Subject: [DUG]: Canvas and cliprect.... To: <[email protected]> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=US-ASCII Hi, I have an image that I want to display the colour of the pixel under the cursor when the left mouse button is clicked. I have the following section of code that does it (doesnt sound difficult does it.)... ==================== procedure TForm1.imageMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer); var colour:TColor; begin colour := Form1.image.Canvas.Pixels[X,Y]; ==================== However I always get -1 returned as the cliprect for the image canvas is always [0,0],[1,1] Looking at the help and trial and error I cannot set the cliprect parameters, so my question is how do these values get set at runtime, and also how can I actually get the colour being recognised? Cheers Chris ********************************************************************** _______________________________________________ Delphi mailing list [email protected] http://ns3.123.co.nz/mailman/listinfo/delphi ______________________________________________________ The contents of this e-mail are privileged and/or confidential to the named recipient and are not to be used by any other person and/or organisation. If you have received this e-mail in error, please notify the sender and delete all material pertaining to this e-mail. ______________________________________________________ _______________________________________________ Delphi mailing list [email protected] http://ns3.123.co.nz/mailman/listinfo/delphi
