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MstrAlloc



See also
Availability
Not available in MIL-Lite
Available in MIL

Available on Windows
Available on Linux

Available on Non-Matrox computer
Available on Matrox 4Sight-X
Available on Matrox 4Sight GP
Available on Matrox Supersight
function map Function map
Examples
Previous
Synopsis
Allocates a String Reader context.
Syntax
MIL_ID MstrAlloc(
MIL_ID SystemId, //in
MIL_INT64 ContextType, //in
MIL_INT64 ControlFlag, //in
MIL_ID *ObjectIdPtr //out
)
Description

This function allocates a String Reader context on the specified system. A String Reader context contains the read parameters, the list of fonts, and the list of string models. When the String Reader context is no longer required, you should release its memory, using MstrFree().

Note that you cannot allocate a fontless context. You must restore one of the predefined fontless context that is distributed with MIL using MstrRestore().

Note that this function reference has not been updated for a MIL system added during a MIL update. Refer to the MIL system's release note to see if there is complementary information.
Parameters
This function is not supported on the selected boards.
Parameters
SystemId INQ

Specifies the system on which to allocate the String Reader context.

This parameter should be set to one of the following values:

function map For specifying the system identifier
CollapseValue Description
Collapse M_DEFAULT_HOST

Specifies the default Host system of the current MIL application.

Collapse MIL system identifier

Specifies a valid system identifier, previously allocated using MsysAlloc().

ContextType

Specifies the type of String Reader context. This parameter must be set to the value below.

function map For specifying the context
CollapseValue Description
Collapse M_FONT_BASED

Specifies a font-based context.

ControlFlag

Reserved for future expansion and must be set to M_DEFAULT.

ObjectIdPtr

Specifies the address of the variable in which to write the String Reader context identifier. Since the MstrAlloc() function also returns the String Reader context identifier, you can set this parameter to M_NULL.

Return value
The returned value is the String Reader context identifier if the allocation is successful. If allocation fails, M_NULL is returned.
Compilation information
Header Include mil.h.
Library Use mil.lib; milstr.lib.
DLL Requires mil.dll; milstr.dll.
DEFAULT HOST FONT BASED