I want to read a property file using ANT, then modify that property.
property.security = true
I have to read above the property and need to change to false. How can I do this?
Related
I'm trying to use a third party library inside ue5. For it to compile, I need to add the "Zc__cplusplus" option to the compiler.
While going through a file named "VCToolChain.cs" I found out that, the needed option will be included if the variable "Target.WindowsPlatform.bUpdatedCPPMacro" is set to true.
So my question is where and when is this variable set?
Can I set it in some non hacky way?
I've been trying to modify the StrokeStyle for the TDirect2DCanvas.Pen in C++Builder.
The documentation says this about the property:
Determines the stroke style in which the pen draws lines.
Use StrokeStyle to specify a more complex style in which the lines are drawn. StrokeStyle accepts an interface that provides a set of methods, each returning a certain drawing option.
The documentation gives no examples. When I try to set this property to anything, I get a compile error saying "cannot write a property that has no write specifiers" (it looks like this property is only set up to read the StrokeStyle; even though the documentation seems to indicate otherwise).
My desire here is to get lines to be rendered with rounded ends rather than the flat ends that it seems to default to when using TDirect2DCanvas. Does anybody know how to accomplish this?
I'm using C++Builder 10.2 and the clang compiler. I'm trying to use TDirect2DCanvas rather than the regular TCanvas because it can draw anti-aliased lines.
The documentation is misleading. The TDirect2DPen::StrokeStyle property is indeed read-only, as it represents the current Direct2D ID2D1StrokeStyle object, as created internally by TDirect2DPen. TDirect2DPen does not provide any way to customize any of the stroke settings other than its dashStyle.
The only way to affect the TDirect2DPen::StrokeStyle is to set the TDirect2DPen::Style property. Setting the Style will release the current ID2D1StrokeStyle, and then if the Style is set to a value other than psSolid, psClear, or psInsideFrame then TDirect2DPen will call ID2D1Factory::CreateStrokeStyle() to create a new ID2D1StrokeStyle, specifying the following properties for it:
startCap = D2D1_CAP_STYLE_FLAT
endCap = D2D1_CAP_STYLE_FLAT
dashCap = D2D1_CAP_STYLE_ROUND
lineJoin = D2D1_LINE_JOIN_ROUND
miterLimit = 10
dashStyle = one of the following, depending on the TDirect2DPen.Style:
D2D1_DASH_STYLE_DASH
D2D1_DASH_STYLE_DOT
D2D1_DASH_STYLE_DASH_DOT
D2D1_DASH_STYLE_DASH_DOT_DOT
dashOffset = 0
dashes = nil
dashesCount = 0
This behavior is hard-coded and cannot be changed.
So, if you want more control over the StrokeStyle, you cannot use TDirect2DCanvas at all. You will have to use the Direct2D API directly instead.
can i change the value of parameter in called target and then retrieve it in the calling target in ant.Probably By refid if there is any other way that is appreciated.
Normally you cannot modify an ant property in ant once it's set, but as oers pointed out in a comment, you can use the Variable task in ant-contrib. You can even override an existing property with a Variable. According to the documentation, you should still use properties in most cases, and only use variables in the cases where you really need to be able to modify a value.
Another workaround is to set additional properties and call the other targets using those properties.
I am using a custom ant buildscript for my Android app.
I have a property ${distributionTarget} that is evaluated to for example Android_Market.
However, in some methods, I don't get the output of app-Android_Market-release.apk but I get app-${distributionTarget}-release.apk.
I am positive the property has been set correctly, since earlier in the build-stage I have a echo method, that does shows the value of the property correctly.
What am I missing here?
It appears the property was initialized earlier on with no value. Refactoring the build-script to init the properties later made it work.
I would like to store the properties I read from a Java type property file in a list. Is there any way I can do that in Ant?
Properties are maps rather than lists. You can read in a set of properties from a file using the property task.
For example:
<property file="${dir}/external.properties"/>
This property file has the format as defined by the file used in the class java.util.Properties, with the same rules about how non-ISO8859-1 characters must be escaped.
When the property file is read it allows for properties in the file to be expanded. Once the file has been read, they are accessed as normal. So if external.properties contains:
test.dir=/usr/test
test.file=foo
test.target=${test.dir}/${test.file}/
You could reference test.target directly in your task:
<!-- Will create the directory structure /usr/test/foo -->
<mkdir dir="${test.target}"/>
See Property.
<property file="foo.properties"/>