Data Access Worldwide Knowledge Base
Article Text
QUESTION:
Some Windows programs have forms that look disabled but allow text to be selected and copied. You cannot edit the text or delete the text. How can we do this with Visual DataFlex?
SOLUTION:
The solution lies in:
- Setting the color to the system color for disabled controls (clBtnFace)
- Disabling many of the key presses by augmenting the key procedure
- Disabling the methods paste and cut
The enclosed class (package, BMP and DFC file) helps you to add a form to your views in which you can have this kind of control. The 3rd enclosure (DisabledFormDemo.vw) shows the usage of the cDisabledForm class.
HOW TO USE:
- Place the DFC and BMP file in the IdeSrc directory (workspace or global)
- Place the package file in the AppSrc folder (workspace or global)
- Open the Configure ClassLists dialog in the Studio
- Click the Add button in the right tabpage
- Enter cDisabledForm, cDisabledForm.Bmp and Base in the first 3 forms
- Click save
Now open the demo view, compile and see how it works.
Contributed By:
Vincent Oorsprong
Company: Data Access Worldwide
email: vincent.oorsprong@dataaccess.eu
Web Site: http://www.dataaccess.eu
Web Links Related to this Article
File cDisabledForm.Bmp
URL=http://www.dataaccess.com/KBasePublic/Files/2208.cDisabledForm.Bmp
File cDisabledForm.Dfc
URL=http://www.dataaccess.com/KBasePublic/Files/2208.cDisabledForm.Dfc
File cDisabledForm.Dfo
URL=http://www.dataaccess.com/KBasePublic/Files/2208.cDisabledForm.Dfo
File cDisabledForm.Pkg
URL=http://www.dataaccess.com/KBasePublic/Files/2208.cDisabledForm.Pkg
File DisabledFormDemo.vw
URL=http://www.dataaccess.com/KBasePublic/Files/2208.DisabledFormDemo.vw
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