A color picker dialog with a color dropper like Photoshop and Frontpage 2000

jack Mesic

4.83/5 (10 votes)

Jan 23, 2002

2 min read

95371

4362

A color picker and dropper that extends the standard Windows dialogs to behave like Photoshop or Frontpage 2000

Introduction

The key features are as follows:

ColorPicker provides a default color panel, which includes over 144 frequent colors.
ColorPicker provides a custom button for opening Windows Common Color Select Dialog. You can select more color here.
ColorPicker provides the color contrast between current selection and new selection.
ColorPicker provides a select button, when you hold the left button of mouse on select button, the cursor has become to a color dropper like Photoshop and Frontpage 2000. You can get any color on the screen via this dropper.
ColorPicker shows both the RGB value and Hex Value of the current selection color.
The color panel will load new palette as soon as the system color range has been changed.
ColorDropper provides 6 color panels for choosing. You can change it during run time.
The most important thing is that, we provide the full source code (100% MFC), ….

Screen Shots

(Screen 1)

(Screen 2)

(Screen 3)

How to use it

The steps for usage are as follows:

Add code in those head files where you want to display Color Picker Dialog.

#include "FODropColorButton.h"
enum { IDD = IDD_DIALOG_COLORPICKER };
CFODropColorButton m_wndColor3;
CFODropColorButton m_wndColor2;
CFODropColorButton m_wndColor1;
CFOHyperLink m_newVersion;
//}}AFX_DATA

Add code in those files/events when you need to get color value.

CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CNewPickerDlg)
DDX_Control(pDX, IDC_FO_TEST_BUTTON3, m_wndColor3);
DDX_Control(pDX, IDC_FO_TEST_BUTTON2, m_wndColor2);
DDX_Control(pDX, IDC_FO_TEST_BUTTON1, m_wndColor1);
//}}AFX_DATA_MAP
DDX_FODropColorButton(pDX,IDC_FO_TEST_BUTTON1,crColor1);
DDX_FODropColorButton(pDX,IDC_FO_TEST_BUTTON2,crColor2);
DDX_FODropColorButton(pDX,IDC_FO_TEST_BUTTON3,crColor3);

Everything is done!

Technical Details

Color Picker Dialog is constructed with classes as follows;

CFOColorButton File Reference:FOColorButton.h, FOColorButton.cpp
CFOColorCellObj File Reference:FOColorCellObj.h, FOColorCellObj.cpp
CFOColorDialogObj File Reference: FOColorDialog.h, FOColorDialog.cpp
CFOColorPaletteControl File Reference:FOColorPaletteControl.h, FOColorPaletteControl.cpp
CFODropPaletteWndFile Reference:FODropPaletteWnd.h, FODropPaletteWnd.cpp
CFODropColorButton File Reference:FODropColorButton.h, FODropColorButton.cpp
CFODropColorPaletteControl File Reference:FODropColorPaletteControl.h, FODropColorPaletteControl.cpp
CFODropColorPaletteWnd File Reference:FODropColorPaletteWnd.h, FODropColorPaletteWnd.cpp
CFOPopupColorPaletteWndFile Reference:FOPopupColorPaletteWnd.h, FOPopupColorPaletteWnd.cpp