|
Color Dialog Box
The Color dialog box returns the RGB value of a color selected by the user.
The user can select from a set of basic colors determined by the display driver
or from a set of custom colors. You must specify the initial set of custom
colors, but you can allow users to create their own custom colors.
You create and display a Color dialog box by initializing a CHOOSECOLOR structure and passing the structure to the ChooseColor function.
You can partially open the Color dialog box to display the basic and custom
colors from which the user can select, or you can completely open the dialog box
to display additional controls that allow the user to create custom colors. The
following illustration shows the fully opened Color dialog box.
If the user clicks the OK button, ChooseColor returns TRUE. The rgbResult member of the CHOOSECOLOR structure contains the RGB color value of the color selected by the user. The
RGB color value specifies the intensities of the individual red, green, and
blue colors that make up the selected color. The individual values range from 0
through 255. Use the GetRValue, GetBValue, and GetGValue macros to extract individual colors from an RGB color value.
If the user cancels the Color dialog box or an error occurs, ChooseColor returns FALSE and the rgbResult member is not defined. To determine the cause of the error, call the CommDlgExtendedError function to retrieve the extended error value.
| Last news from Greatis Software |
 |
|
Nostalgia .Net |
|
.Net is powerful, but not all-powerful, so sometimes we need to use Win32 API for our .Net applications. It's simple enough with Platform Invoke if you have Win32 skill, but we do not always have time to dig the ancient documentation, declare the special types that are compatible with Win32, find the values of the Win32's constants and so on. Nostalgia .Net offers several simple-to-use classes, and components that will allow you to forget about the headache of Win32 and just use the power of Win32 in your application the same way as you use the native. Net classes. More » |
| Recommended software for developers |
 |
|
Ultimate Pack |
|
Component pack for Delphi and C++ Builder that contains runtime form designer, runtime object inspector, print suite and much more for the very special price. More » |
 |
|
Form Designer .Net |
|
Unique runtime form design solution that allows to edit any form in .Net WinForms application at runtime with full source codes for only 300 euro! More » |
 |
|
Print Suite .Net |
|
Print Suite .Net is a set of components for easy printing texts, images and grids from your WinForms applications. Full C# source codes are available More » |
 |
|
Gradient Controls .Net |
|
Gradient Controls .Net offers controls with gradient background feature. Labels, panels and so on... Full C# source codes are available More » |
 |
|
Greatis iGrid |
|
iGrid plots drawing grid right over your desktop, so you can use it everywhere, with any drawing application without any special plugins for different graphic editors. More » |
All the contacts and projectsDmitry Vasiliev (just.dmitry)
Related LinksSoftware for Visual Studio .NET developers
Software for Delphi and C++ Builder developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET More Online Helps Win32 Programmer's Reference
Win32 Multimedia Programmer's Reference
OLE Programmer's Reference
Microsoft Windows Pen API Programmer's Reference
Microsoft Windows Sockets 2 Reference
Microsoft Windows Telephony API (TAPI) Programmer's Reference
Unix Manual Pages
|
