[Gambas-user] Problem clearing picture in a PictureBox
Hi, I've this form with a Panel and in there some TextBoxes, PictureBoxes and some Buttons. Button opens a Dialog to browse for PNG files and when selected show use the Dialog.Path to load the PNG into PictureBox (using PicBox.Picture = Picture.Load(Dialog.Path)) At a certain moment I want to clear the form and have this little rountine: Public Sub PanelClear() TextBox1.Clear TextBox2.Clear PictureBox1.Picture.Clear PictureBox2.Picture.Clear Me.Refresh End TextBoxes clear properly, but PictureBoxes don't. The loaded PNG stays visible in the PictureBox. If one of the PictureBoxes has no loaded picture in there on clearing an error is generated because of it being Null. 1. How do I get the PictureBoxes cleared of the shown picture? Am I using Clear wrongly? Also tried PictureBox1.Picture.Flush with no success. 2. How test for a empty PictureBox? I tried testing with IsNull(PictureBox.Picture), but that doesn't seem to do the job. Any suggestions that might get me on the road again? Running Gambas 3.3.4 on Linux Mint 13 - Mate desktop Using gb.qt4 in the project. Willy -- Keep yourself connected to Go Parallel: TUNE You got it built. Now make it sing. Tune shows you how. http://goparallel.sourceforge.net ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Problem clearing picture in a PictureBox
Le 30/11/2012 16:04, Willy Raets a écrit : Hi, I've this form with a Panel and in there some TextBoxes, PictureBoxes and some Buttons. Button opens a Dialog to browse for PNG files and when selected show use the Dialog.Path to load the PNG into PictureBox (using PicBox.Picture = Picture.Load(Dialog.Path)) At a certain moment I want to clear the form and have this little rountine: Public Sub PanelClear() TextBox1.Clear TextBox2.Clear PictureBox1.Picture.Clear PictureBox2.Picture.Clear Me.Refresh End TextBoxes clear properly, but PictureBoxes don't. The loaded PNG stays visible in the PictureBox. If one of the PictureBoxes has no loaded picture in there on clearing an error is generated because of it being Null. 1. How do I get the PictureBoxes cleared of the shown picture? Am I using Clear wrongly? Also tried PictureBox1.Picture.Flush with no success. 2. How test for a empty PictureBox? I tried testing with IsNull(PictureBox.Picture), but that doesn't seem to do the job. Any suggestions that might get me on the road again? Running Gambas 3.3.4 on Linux Mint 13 - Mate desktop Using gb.qt4 in the project. Willy PictureBox1.Picture = Null PictureBox1.Picture.Clear only clears the contents of the picture returned by the property, which is somewhat a copy of the internal picture of the PictureBox which stays unchanged. Regards, -- Benoît Minisini -- Keep yourself connected to Go Parallel: TUNE You got it built. Now make it sing. Tune shows you how. http://goparallel.sourceforge.net ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Problem clearing picture in a PictureBox
On Fri, 2012-11-30 at 16:06 +0100, Benoît Minisini wrote: Le 30/11/2012 16:04, Willy Raets a écrit : Hi, I've this form with a Panel and in there some TextBoxes, PictureBoxes and some Buttons. Button opens a Dialog to browse for PNG files and when selected show use the Dialog.Path to load the PNG into PictureBox (using PicBox.Picture = Picture.Load(Dialog.Path)) At a certain moment I want to clear the form and have this little rountine: Public Sub PanelClear() TextBox1.Clear TextBox2.Clear PictureBox1.Picture.Clear PictureBox2.Picture.Clear Me.Refresh End TextBoxes clear properly, but PictureBoxes don't. The loaded PNG stays visible in the PictureBox. If one of the PictureBoxes has no loaded picture in there on clearing an error is generated because of it being Null. 1. How do I get the PictureBoxes cleared of the shown picture? Am I using Clear wrongly? Also tried PictureBox1.Picture.Flush with no success. 2. How test for a empty PictureBox? I tried testing with IsNull(PictureBox.Picture), but that doesn't seem to do the job. Any suggestions that might get me on the road again? Running Gambas 3.3.4 on Linux Mint 13 - Mate desktop Using gb.qt4 in the project. Willy PictureBox1.Picture = Null PictureBox1.Picture.Clear only clears the contents of the picture returned by the property, which is somewhat a copy of the internal picture of the PictureBox which stays unchanged. Simple and effective :) Works as a charm. Thank you, Willy -- Keep yourself connected to Go Parallel: TUNE You got it built. Now make it sing. Tune shows you how. http://goparallel.sourceforge.net ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
