IDE constants

The VSConstants class provides constants that are specific to the integrated development environment (IDE) and that were previously defined only in header files.

Logical and physical views

Value	Description
Code_guid	GUID_VSStandardCommandSet97 `cmdidOpenWith` handlers should pass this value to the OpenStandardEditor method to get the Open With dialog box, in this case on possible code views.
Debugging_guid	GUID_VSStandardCommandSet97 `cmdidOpenWith` handlers pass this value to the OpenStandardEditor method to get the Open With dialog box, in this case populated with possible Debugging_guid debugging views which map to the same view as Code_guid.
Designer_guid	GUID_VSStandardCommandSet97 `cmdidOpenWith` handlers pass this value to the OpenStandardEditor method to get the Open With dialog box, in this case to View Form designer views.
Primary_guid	GUID_VSStandardCommandSet97 `cmdidOpenWith` handlers pass this value to the OpenStandardEditor method to get the Open With dialog box, in this case the default/primary view of the editor factory.
TextView_guid	GUID_VSStandardCommandSet97 `cmdidOpenWith` handlers pass this value to the OpenStandardEditor method to get the Open With dialog box, in this for a document or data text editor view.
UserChooseView_guid	GUID_VSStandardCommandSet97 `cmdidOpenWith` handlers pass this value to the OpenStandardEditor method which prompts the user to choose which user-defined view to use.

Editor Factory Flags

Value	Description
CEF.CloneFile	An obsolete flag combined bitwise as the first parameter of the CreateEditorInstance method.
CEF.OpenAsNew	Combined bitwise as the first parameter of the CreateEditorInstance, method, this indicates the editor factory should perform necessary fixes.
CEF.OpenFile	Combined bitwise as the first parameter of the CreateEditorInstance method, this flag is mutually exclusive of CEF.CloneFile.
CEF.Silent	Combined bitwise as the first parameter of the CreateEditorInstance method, this indicates the editor factory should create the editor without displaying a user interface (UI).

Visual Studio errors

Value	Description
VS_E_BUSY	A constant returned by interfaces to asynchronous behavior when the object in question in already busy
VS_E_INCOMPATIBLEDOCDATA	An error HRESULT that is specific to Visual Studio for "Incompatible document data".
VS_E_PACKAGENOTLOADED	An error HRESULT that is specific to Visual Studio and that indicates "Package not loaded."
VS_E_PROJECTALREADYEXISTS	An error HRESULT that is specific to Visual Studio and that indicates that the "Project already exists."
VS_E_PROJECTMIGRATIONFAILED	An error HRESULT that is specific to Visual Studio and that indicates "Project configuration failed."
VS_E_PROJECTNOTLOADED	An error HRESULT that is specific to Visual Studio and that indicates "Project not loaded."
VS_E_SOLUTIONALREADYOPEN	An error HRESULT that is specific to Visual Studio and that indicates "Solution already open."
VS_E_SOLUTIONNOTOPEN	An error HRESULT that is specific to Visual Studio and that indicates "Solution not open."
VS_E_SPECIFYING_OUTPUT_UNSUPPORTED	Returned by build interfaces that have parameters for specifying an array from the IVsOutput interface, but the implementation can only apply the method to all outputs.
VS_E_UNSUPPORTEDFORMAT	The CreateEditorInstance method returns this value if the document has a format that cannot be opened in the editor.
VS_E_WIZARDBACKBUTTONPRESS	An HRESULT value that indicates that the user hit the back button in a Visual Studio wizard.

Visual Studio constants

Value	Description
VS_S_PROJECTFORWARDED	An error HRESULT that is specific to Visual Studio and that indicates "Project forwarded."
VS_S_TBXMARKER	A constant that is specific to Visual Studio for a "Toolbox marker."
VSM_ENTERMODAL	A constant that is specific to Visual Studio for broadcasting a notification message via the OnBroadcastMessage method which indicates the beginning of modality.
VSM_EXITMODAL	A constant that is specific to Visual Studio for broadcasting a notification message via the OnBroadcastMessage method that indicates the end of modality.
VSM_TOOLBARMETRICSCHANGE	A constant that is specific to Visual Studio for broadcasting a notification message via the OnBroadcastMessage method indicating that the command bar metrics have changed.
VSCOOKIE_NIL	A constant that is specific to Visual Studio that indicates that a cookie has not been set.
VSITEMID.Nil	A Visual Studio item identifier that represents the absence of a project item. This value is used when there is no current selection.
VSITEMID.Root	A Visual Studio item identifier that represents the root of a project hierarchy and is used to identify the entire hierarchy, as opposed to a single item.
VSITEMID.Selection	A Visual Studio item identifier that represents the currently selected item or items, which can include the root of the hierarchy.

IVsSelectionEvents

Describes what component of the IDE has just been selected, in an OnElementValueChanged call, for example.

Constant	Value
SelectionElement.DocumentFrame	0x2
SelectionElement.PropertyBrowserSID	0x4
SelectionElement.StartupProject	0x3
SelectionElement.UndoManager	0x0
SelectionElement.UserContext	0x5
SelectionElement.WindowFrame	0x1

VSSELELEMID

Constants used to indicate a new selection state.

Constant	Value
VSConstants.VSSELELEMID	2
VSConstants.VSSELELEMID	7
VSConstants.VSSELELEMID	4
VSConstants.VSSELELEMID	6
VSConstants.VSSELELEMID	3
VSConstants.VSSELELEMID	0
VSConstants.VSSELELEMID	5
VSConstants.VSSELELEMID	1

Component selector dialog constants

Constant	Value
CPDN_SELCHANGED	WM_USER + 1280
CPDN_SELDBLCLICK	WM_USER + 1281
CPPM_CLEARSELECTION	WM_USER + 1290
CPPM_GETSELECTION	WM_USER + 1287
CPPM_INITIALIZELIST	WM_USER + 1285
CPPM_INITIALIZETAB	WM_USER + 1288
CPPM_QUERYCANSELECT	WM_USER + 1286
CPPM_SETMULTISELECT	WM_USER + 1289

通过